The following is a list of defunct airlines of the United States. However, some of these airlines have ceased operations completely, changed identities and/or FAA certificates and are still operating under a different name (e.g. America West Airlines changed to use the identity of US Airways in 2005 – which itself also changed identity to American Airlines in 2015).

For reasons of size, this article is broken into four parts:

• List of defunct airlines of the United States (A–C)
• List of defunct airlines of the United States (D–I)
• List of defunct airlines of the United States (J–P)
• List of defunct airlines of the United States (Q–Z)

Airline	State or territory	Image	IATA	ICAO	Callsign	Hubs and focus cities	Commenced operations	Ceased operations	Notes
Q
Quaker City Airways	California					Burbank	1948	1959	Renamed to Admiral Airlines. Operated Boeing 307 Stratoliner [1]
Queen City Flying Service	Ohio					Cincinnati/Northern Kentucky	1940	1970	Operated Beech 18, C-45 Expeditor [2]
Quicktrans
R
Ram Air Freight	North Carolina			REX	RAM EXPRESS	Raleigh Durham	1982	2008	Operated Grumman Cheetah, Piper Seneca, Piper PA-32
Ramp 66	South Carolina			PPK		North Myrtle Beach	1991	1994	Operated Beech Baron, Beech Bonanza, Cessna 402 [3]
Ranger Airlines	Texas					El Paso	1968	1970	Scheduled third-level services [4]
Rankin Flying Service	Oregon					Swan Island	1927	n/a	Founded by Tex Rankin [5]
Ransome Airlines	Pennsylvania		RZ			Northeast Philadelphia	1967	1995	Feeder flights for Allegheny Commuter (1970-1982), Delta Connection (1984-1987), Pan Am Express (1987-1991) and Trans World Express (1991-1995)
Rapid Air							1965	2006	Cargo operator. Known as Sparta Aviation Service
Rapid Air Lines	South Dakota					Rapid City	1930	1933	Merged with Hanford Airlines to form Hanford-Rapid Airlines [6]
Rapid City Airlines	South Dakota					Rapid City	1928	1929	Established as Pioneer Airways. Operated Curtiss Jenny [7]
Raritan Valley Air	New Jersey					Manville	1966	1968	Operated Beech 18, Beech Baron, Piper Apache [8]
Rasmark Jet Charter	Texas					El Paso	1984	2000	Operated Learjet 25, Falcon 20 [9]
Raven Air	Alaska					Anchorage	1987	1992	Operated Cessna aircraft [10]
Ravn Alaska	Alaska		7H	RVF	RAVN FLIGHT	Anchorage	2014	2020	Shutdown due to travel disruptions caused by the COVID-19 pandemic
Ray Petersen Flying Service	Alaska					Bethel	1937	1945	Acquired Bristol Bay Air Service and Jim Dodson Air Service [11]
RCR Air	North Carolina					Lexington	2007	2014	Operated Embraer ERJ 145 [12]
Reading Aviation Service	Pennsylvania					Reading	1966	1966	Operated de Havilland Dove, Beech D18S [13]
Rectrix Aviation	Massachusetts					Nantucket	2005	2019
Red Arrow Flying Service	Florida					Miami	1917	1919	Renamed to Chalk's Flying Service Operated Stinson Voyager with floats [14] [15]
Red Baron Airlines	Florida					Palm Beach	1979	1980	Renamed to Florida Commuter Airlines
Red Carpet Airlines	Florida			RED		Clearwater	1978	1981	Renamed Aerosun International. Operated Convair 340, DC-3 [16]
Red Way	Nebraska					Lincoln	2023	2023	Virtual airlne
Red Wing Flying Service	Massachusetts					Ware	1929	1929	Air taxi [5]
Rediske Air	Alaska					Soldotna	1991	2017
Redline Air Charters	Alaska					Ruby	1996	2010	[17]
Reeve Aleutian Airways	Alaska		RV	RVV	REEVE	Anchorage	1932	2001
Regent Air	California					Los Angeles	1983	1986	Established as First Air. Operated B-727 [18]
Regina Airlines	Florida					Miami	1948	1960	Operated C-46 [19]
RegionsAir	Tennessee		3C	CEA	CORP-X	Smyrna	1996	2007
Reilly Air Service	California					Los Angeles	1968	1971	Operated Beech 18 [20]
Reliant Airlines	Michigan			RLT			1984	2002
Reno Air	Nevada		QQ	ROA	RENO AIR	Reno–Tahoe	1992	1999	Merged into American Airlines
Reno Air Express	California					San Jose	1994	1995	[21]
Renown Aviation	California		RG	RGS		Santa Maria	1980	2000	Established as Western Aircraft Salvage [22]
Republic Airlines	Minnesota		RC	REP	REPUBLIC	Minneapolis–Saint Paul	1979	1986	Merged into Northwest Airlines
Resort Air	Missouri					St. Louis Lambert	1983	1989	Renamed to Trans States Airlines. Operated Swearingen Metro [23]
Resort Air	Rhode Island					Block Island	1990s	1990s	Charter carrier [24]
Resort Air	Oregon					Sunriver	1992	1992	Scenic tours [25]
Resort Airlines	California					Oakland	1949	1961	[26]
Resort Airlines	Florida					Miami	1949	1949	[27]
Resort Airlines	Maryland					Baltimore–Washington	1982	1986	Operated Piper aircraft [28]
Resort Airways	Hawaii					Honolulu	1960	1971	Absorbed by HATS Hawaiian Air Tour Service. Operated Aero Commander 500 [29]
Resort Commuter	California					Orange County	1988	1995	Operated Convair 580 [30]
Resort Commuter Airlines	South Carolina						1975	1979	Renamed to Mid-South Airlines [31]
Resort Commuter Airlines	California		XK			Orange County	1984	1989	Established as Catalina Commuter [32]
Rhoades International	Indiana			RDS		Columbus	1989	2006	Renamed to Rhoades Aviation. Operated Convair C-131, Convair 240, DC-3, Douglas DC-6 [33]
Rich International Airways	Florida		JN	RIA	RICHAIR	Miami	1969	1996
Richmond Aviation	Virginia					Richmond	1963	1971	Operated Piper Twin Comanche, Twin Bonanza, Mitsubishi MU-2 [34]
Riddle Airlines	Florida					Miami	1945	1965	Rebranded as Airlift International
Rio Airways	Texas		XO	REO	RIO	Skylark Field	1967	1986	Began as Hood Airlines
RKO General	Massachusetts						1968	1970	Helicopter air taxi. Operated Bell 47, Bell 206 [35]
Robertson Aircraft Corporation	Missouri					Lambert Field	1925	1929	[36]
Robin Airlines	California					Long Beach	1950	1951	Renamed to North Continent Airlines [37]
Robinson Airlines	New York					Ithaca	1945	1952	Renamed to Mohawk Airlines [38]
Roblex Aviation	Puerto Rico			ROX		San Juan	1997	2013	Cargo operator [39]
Rochester Aviation	Minnesota					Rochester	1969	1971	Operated Cessna 206 [40]
Rockford Air Charter	Illinois					Chicago Rockford	1964	1971	Operated Cessna 206, Beech 18, Piper Twin Comanche [41]
Rocky Mountain Airways	Colorado		JC	RMA	ROCKY MOUNTAIN	Denver Stapleton	1965	1991	Began as Vail Airways. Merged into Continental Express
Rogers Heavy Lift Helicopters	California					Fresno Yosemite	1994	1998	Operated Sikorsky CH-54 Tarhe [42]
Roscoe Turner Aeronautical Corporation	Georgia					Candler Field	1925	1928	Operated Sikorsky S-29-A
Rose Aviation	California					Hawthorne	1968	1969	Operated Piper Apache, Aero Commander 500 [43]
Rosenbalm Aviation	Massachusetts			RAX	ROSIE	Willow Run	1973	1991	Became Flagship Express Services. Operated Consolidated PBY Catalina, DC-6, DC-8-63F [44]
Roseswift Air Service	Michigan					Grand Rapids	1920	1920	Founded by Arthur Rosenthal and Thomas Swift. Operated Curtiss Jenny [45]
Roswell Airlines	New Mexico					Roswell	1976	1981	Founded by Dick Callens. Operated Piper Seneca [46]
Roust Airways	Alaska					Nome	1930	1935	Founded by Thomas Pedersen Roust [47]
Royal Air	Missouri					Kansas City	1978	1980	Operated Embraer Bandeirante [48]
Royal American Airlines	Arizona					Tucson	1977	1986	Operated Vickers Viscount [49] [50]
Royal American Airways				RLM			1981	1993	Operated Convair 240, Convair 600, Vickers Viscount [51]
Royal Hawaiian Air Service	Hawaii		ZH				1971	1986	Established as Hawaii Wings in 1963. Operated Cessna 402C [52]
Royal Hawaiian Airlines	Hawaii					Honolulu	1985	1986	[53]
Royal West Airlines	Nevada					Las Vegas McCarran	1981	1982	Operated DC-3 [54]
Royal West Airlines	Colorado			RWE	ROYAL WEST	Colorado Springs	1981	1987	Merged with Aero West Airlines in 1982. Operated DC-3, BAe 146 [55]
Royal West Airlines	Nevada					Las Vegas McCarran	1986	1987	[56]
Royal-Air	Arkansas					Goodwin Field	1982	1982	Established as Jamaire. Renamed to Sunbelt Airlines [57]
Royale Airlines	Louisiana		OQ	RAY	ROYALE AIR	New Orleans Armstrong	1968	1989
Rugby Aviation	Washington					Seattle-Tacoma	2002	2007	Renamed to Northwest Sky Ferry [58]
Russia Jet Direct	Washington		RD	RYN		Seattle–Tacoma	2005	2005
Ryan Air	Alaska					Anchorage	1979	1988	Established as Unalakleet Air Taxi. Renamed to Arctic Transportation Services [59]
Ryan Airline Company	California					San Diego	1925	1926
Ryan International Airlines	Illinois		RD	RYN	RYAN	Chicago Rockford	1972	2013
S
S.I. Airways	Texas					Amarillo	1974	1975	[60]
S.S. Airways	Kansas					Amarillo	1972	1972	Renamed to Century Airlines [61]
Saber Aviation			SP	SBR			1978	1991	[62]
Safeway Airlines	Alaska					Fairbanks	1964	1968	Operated Piper Apache, Piper Comanche, Cherokee Six [63]
Sair	New York					Syracuse	1961	1999	[64]
Salair	Alaska			8S	SIR	Anchorage	1980	1997	Operated DC-3, Convair 440. Renamed to Air Alaska Cargo
Salmon Air	Idaho		S6	MBI		Boise	1968	2009	Merged into McCall Aviation
Samoa Air	American Samoa					Pago Pago	1987	2003
San Diego Sky Freight	California					San Diego	1950	1952	Cargo operator [65]
San Francisco and Oakland Helicopter Airlines	California		OH		SFO AIRLINES	San Francisco	1961	1986
San Juan Airlines	Washington					Port Angeles	1947	1989	Commuter operator [66]
San Juan Airlines			YS				1970	1989	Merged into Alaska Airlines [67]
San Marino Taxi Aereo	California					Long Beach	1999	2003	[68]
Santa Fe Airline Company	New Mexico					Santa Fe	1972	1972	Intrastate air carrier [69]
Santa Fe Skyway							1946	1947	[70]
Santa Maria Airlines	California					Hancock Field	1928	1935	Founded by George Allan Hancock [71]
SAT-Air	Texas					San Antonio	1983	1995	Renamed to Merlin Express [72]
Satellite Aero	Wyoming					Jackson Hole	1990	1995	Operated Cessna 206, Cessna 402C, Piper Navajo [73]
Saturn Airways	California		KS			Oakland	1961	1976	Absorbed into Trans International Airlines
Sawyer Aviation	Arizona					Phoenix Sky Harbor	1961	1998	Operated Cessna 182, Cessna 425C, Cessna Citation [74]
SB Air	Texas					Dallas Love Field	1999	2019	Established as Seven Bar Flying Services. Renamed to SevenBar Aviation. Medical transport operator. [75]
Scanderbeg Air	New York		P1			New York Kennedy	2009	2009	Charter carrier [76]
SCAT South Central Air Transport	Arkansas					Fayetteville	1946	1948	Operated Cessna UC-78 [77]
Scenic Air	California					Columbia	1994	1995	[78]
Scenic Air Tours Hawaii	Hawaii					Honolulu	1992	1996	[79]
Scenic Airlines	Nevada		YR	YRR		North Las Vegas	1967	2007	Acquired by Grand Canyon Airlines and renamed to Grand Canyon Scenic Airlines [80]
Scenic Airways	Arizona					Grand Canyon	1927	1930	Renamed to Grand Canyon Airlines [81]
Scheduled Skyways	Arkansas					Fayetteville	1953	1972	Merged into Air Midwest
Scheerer Air	Florida					Palm Beach	1979	1980	Merged into Florida Commuter Airlines [82]
Seaboard & Western Airlines	New York					New York Kennedy	1947	1961	Renamed to Seaboard World Airlines [83]
Seaboard World Airlines	New York		SB	SEW	SEABOARD	New York Kennedy	1946	1980	As Seaboard & Western Airlines, merged into Flying Tiger Line
Seaco Airlines	Michigan					Detroit Metro	1976	1980	Operated Cessna 402, Piper Aztec [84]
Seacoast Air Transport	Massachusetts					New Bedford	1937	1939	[85]
SeaCoast Airlines	Florida			SCC	SEA-COASTER	St. Pete–Clearwater	2002	2012
Seagull Air	Alaska					Bethel	1988	1989	Founded by J. Timothy Cracie [86]
Seagull Air Lines	Utah					Salt Lake City	1929	1930	Operated Curtiss Robin [87]
Seair Alaska Airlines	Alaska					Anchorage	1980	1986	Established as Sea Airmotive. Operated Convair 440, Twin Otter [88]
Seaplanes of Key West	Florida					Key West	2004	2006	[89]
SeaPort Airlines	Oregon		K5	SQH	SASQUATCH	Portland	2008	2016	Went into bankruptcy [90]
Seattle Air Charter	Washington					Seattle-Tacoma	1947	1949	[91]
Seattle Commuter Airlines	Washington					Seattle-Tacoma	1965	1968	Scheduled commuter air services [92]
Seattle Flying Services	Washington					Seattle	1930	1930	Founded by Vern Gorst [93]
Seattle-Victoria Airmail Line	Washington					Seattle	1919	1919	Established as Hubbard Air Transport [94]
Sentinel Airlines	Texas					Abilene	1971	1971	Operated Cessna 402 [95]
Seven Bar Flying Services	Texas					Dallas Love Field	1947	1999	Medical transport operator. Renamed SB Air [96]
Seven Seas Airlines	California					Burbank	1957	1961	Operated C-46, DC-4 [97]
Severson Air Activities	Montana					Great Falls	1964	1971	Operated Cessna 182, Cessna 320 [98]
Seward Airways	Alaska					Seward	1937	1939	Founded by John Littley [99]
Shalkow Air Cargo Express	Ohio					Cleveland Hopkins	1982	1989	Established as Ace Air Cargo Express. Operated C-47 [100]
Shasta Air	California					Yreka Rohrer Field	1968	1983	Operated Piper Navajo [101]
Shavano Air	Colorado			SHV	SHAVANO	Harriet Alexander Field	1960	2002
Shawnee Airlines	Florida		XW	SHW	SHAWNEE	Orlando Executive	1968	1975	Acquired by Florida Airlines [102]
Shawnee Airways	Ohio					Akron–Canton	1961	1972	Founded by Ernest Stadvec [103]
Sheffield P. Wilds	South Carolina						196	1971	Operated Aero Commander 500, Piper Apache [104]
Shelby Sky Haven	Ohio					Mansfield	1948	1963	Renamed to GCS Air Service [105]
Shelter Charter Services	Georgia					Atlanta	2017	2017	Operated Cessna Citation I [106]
Shelton-Jefferson Airways	Missouri					St. Louis Lambert	1930	1931	Operated Ogden Osprey [5]
Shenandoah Airlines	Virginia					Charlottesville–Albemarle	1968	1970	Operated Beech E18S [107]
Shoreline Aviation	Connecticut					Tweed New Haven	1980	2020	Operated Cessna Caravan seaplane [108]
Shorter Airlines	Michigan					Pellston Regional	1968	1975	Operated Beech E18S, DC-3 [109]
Shuttle Air Lines	California					Glendale Grand Central	1931	1932	Operated Ogden Osprey [5]
Shuttle America	Indiana		S5	TCF	MERCURY	Chicago O'Hare	1995	2017	Republic Airways Holdings merged into another subsidiary
Shuttle by United	California		UA	UAL	UNITED	San Francisco	1994	2001	Subsidiary of United Airlines, renamed United Shuttle
Sidles Airways	Nebraska					Lincoln	1930	n/a	Operated Stinson Detroiter (NC7474) [5]
Siemans Air Transport	Pennsylvania					Uniontown	1927	n/a	Founded by Charles L. Siemans [5]
Sierra Expressway	California			SRX	SIERRA EX	Oakland	1994	1996	[110]
Sierra Mountain Airways	California					Oakland	1987	1989	[111]
Sierra Nevada Airways	Nevada		ZS			Las Vegas McCarran	1984	1997	Operated Beech Baron, Cessna 402C [112]
Sierra Pacific Airlines	California					Oakland	1965	1966	Operated Beech 18 [113]
Sierra Pacific Airlines	Arizona					Tucson	1976	1982	[114]
Sierra West Airlines	California					Van Nuys	1974	1975	Operated Beech Queen Air [115]
Silver State Airlines	Nevada					Las Vegas McCarran	1979	1982	Charter carrier [116]
Silver State Helicopters	Nevada					Henderson Executive	1999	2008
Silver Wings Aviation	South Dakota					Rapid City	1975	1976	[117]
Simmons Airlines	Michigan		MQ	SYM	SIMMONS	Marquette	1978	1998	Merged into American Eagle Airlines
Sis-Q Flying Service	California					Sonoma County	1962	1979	Aerial fire fighting. Operated Grumman Tigercat [118]
Sisk Aviation Activities	Illinois					St. Louis Downtown	1964	1977	Third-level services [119]
Sizer Airways	North Dakota					Fargo-Hector Field	1970	1979	Established as Luthi Aviation. Operated Beech 18, Riley Rocket [120]
Skagway Air Service	Alaska		7J	SGY			1964	2007	[121]
Sky Bus Public Charter	Florida					Fort Lauderdale	1993	1993	Operated Boeing 727-200 [122]
Sky Courier							1988	1988	To Airborne Express [123]
Sky Harbor Air Service	Nebraska		NE	SKD	SKY DAWG	Omaha	1954	1970	[124]
Sky Harbor Air Services	Wyoming		WY	SHC	SKY HARBOR CHEYENNE	Cheyenne	1988		[125]
Sky King	Florida		5K	SGB	SONGBIRD	Miami	1990	2015	Rebranded as Songbird Airways
Sky Tours	Massachusetts						1947	1953	Established as Erie Isle Airways. Renamed to Island Airlines [126]
Sky Tours Hawaii	Hawaii						1965	1971	[127]
Sky Trek International Air Lines	Virginia					Richmond	1996	2000	Renamed Discovery Airways in 1999
Sky Trucks International	Florida					Fort Lauderdale	1972	1975	[128]
Skybus Airlines	Ohio		SX	SKB	SKYBUS	Columbus	2004	2008
Skybus Express	Georgia					Atlanta	1991	1992	Operated GAF Nomad
Skycoach Express	California						1953	1954	Founded by Irving E. Herman. Operated C-46 [129]
Skyfreighters	Texas					Grand Prairie	1984	1991	Established as Coker Airfreight. Acquired by Kitty Hawk Airways. Operated Douglas C-117D [130]
Skyfreight Airlines	Florida					Miami	1981	1984	Operated DC-3 [131]
Skyline Air Service	Washington					Seattle-Tacoma	1967	1969	Founded by Tom Wilson. To Puget Sound Airlines [132]
Skyline Motors Aviation Services	Ohio					Youngstown–Warren	1979	1981	Renamed to B.A.S Airlines [133]
Skylink Airways	Maryland					Washington Dulles	2003	2005	Rebranded as MAXjet Airways
Skymark Airlines	California					Sacramento Executive	1968	1969	[134]
Skymaster Air Taxi	New Hampshire		8M	SDD	SKY DANCE	Laconia	1989	1993	Renamed Atlantic North Airlines [135]
Skyservice USA	Colorado					Chicago Rockford	1998	2000
Skystar International	Virginia			SSK		Washington National	1984	1987	International pilgrimage [136]
Skystream Airlines	Illinois		DN			Chicago Meigs Field	1973	1980	Founded by Cecil Pond. Acquired Hub Airlines [137]
SkyValue	Florida		XP	CXP	RUBY MOUNTAIN	Fort Lauderdale-Hollywood	2006	2007
SkyValue Airways	Michigan		4A	DYN		Oakland County	2018	2018	[138]
Skyvan Airways							1963	1964	Operated C-46 [139]
Skyway Airlines (Skyway Aviation)	Missouri		ZY			Forney Field	1960	1979	Air taxi operator [140]
Skyway Airlines							1968	1980	Known as Skyway Commuter. Operated Beech E18S [141]
Skyway Airlines	Wisconsin		AL	SYX	SKYWAY-EX	Milwaukee Mitchell	1994	2008
Skyway Commuter	Florida					Ocala	1984	1985	Established ad Skyway of Ocala [142]
Skyway of Ocala	Florida					Ocala	1981	1984	Operated as Air Florida Commuter [143]
Skyways International	Florida					Miami	1946	1951	Operated C-46, DC-3, Lockheed Lodestar [144]
Skyways International	Florida					Miami	1969	1972	Renamed to Transair Cargo [145]
Skyways International	Texas					Houston Bush	1978		[146]
Skyworld Airlines	Colorado		PC	SPC		Denver	1986	1992	Formerly Denver Ports of Call
Slick Airways	Texas					Hollywood Burbank	1946	1966	To Airlift International
Slocum Airlines	Florida			SLO	SLOCUM	Miami	1981	1984	Operated as Air Florida Commuter [147]
Small Community Airlines	Florida					Dallas Love Field	2007	2009	Operated BAE Jetstream [148]
SMB Stage Lines	Texas		MJ	STG	STAGE	Dallas Fort Worth	1967	1990	Operated Convair 580, Convair 600, DC-3 [149]
Smokers Express	Florida					Melbourne Orlando	1993	1993	Not launched
Smyer Aircraft	Kansas					Strother Field	1968	1972	Operated Cessna 206, Cherokee Six [150]
Solar Airlines	New Mexico					Roswell	1964	1971	Operated Beech 18, Dumod Infinité I, PacAero Tradewind [151]
Soldotna Air Service	Alaska					Soldotna	1978	1979	[152]
Song	Georgia		DL	DAL	DELTA	Atlanta	2003	2006	Merged back in with its parent company, Delta Air Lines
Songbird Airways	Florida		6K	SGB	SONGBIRD	Orlando	1990	2017	Began as Sky King Inc. [153]
Sonora Air Lines	Nevada					Reno–Tahoe	1967	1971	Operated Cessna 150, Cessna 172, Piper PA-23 [154]
Sourdough Air Transport	Alaska					Fairbanks	1953	1962	[155]
South Atlantic Airlines	South Carolina					Myrtle Beach	1968	1969	Operated Aero Commander 500, Turbo Commander 690 [156]
South Bend Airways	Indiana					Cadet Field	1927	n/a	Founded by Stephen Darius, Carl G Jordan. Operated Pheasant H-10 [5]
South Central Air	Alaska			SCA		Kenai	1967	2001	Founded by Harold and Irene Andersen. Operated BAe Jetstream 31, BN Islander, Cessna [157]
South Central Air Transport (SCAT)	Mississippi					Natchez–Adams	1971	1977	[158]
South Central Airlines	Florida					Ocala	1963	1964	[159]
South East Airline
South Pacific Air Lines	California						1960
South Pacific Island Airways	Hawaii		HK	SPI	SOUTH PACIFIC	Honolulu	1973	1987
South Winds Cargo	Florida		WE	SWC		Miami	2002	2005	Merged into Centurion Cargo. Operated DC-10
Southcentral Air	Alaska		XE	SCA	SOUTH CENTRAL	Kenai	1975	1999	[160]
Southeast Airlines	Tennessee		SL		SOUTHEAST	Tri-Cities	1956	1959	[161]
Southeast Airlines	Florida		NS	SEA	SOUTHEAST AIR	Miami	1966	1981	Originally known as Cat Cay Airlines [159]
Southeast Airlines	Florida		Sl	SNK		Youngstown–Warren	1999	2004
Southeast Airlines (Southeastern Aviation)	Tennessee					Jackson	1960	1979	Operated de Havilland Dove [162]
Southeast Skyways	Alaska		SE			Juneau	1968	1983	Founded by Dean Williams and Billy Bernhardt. Operated Cessna 207, DHC Beaver [163]
Southeastern Commuter Airlines	Georgia					Atlanta	1973	1983	Acquired by Atlantic Southeast Airlines
Southern Air Transport (1929)	Texas						1929	1929	Controlled by Avco, the company that organized American Airlines
Southern Air Transport	Florida		SJ	SJM	SOUTHERN AIR	Miami	1947	1998	To Southern Air
Southern Airlines	Florida						1981	1981	Rebranding Florida Commuter Airlines [164]
Southern Airlink	Mississippi					Bay Springs	1996	1997	[165]
Southern Airways	Georgia		SO	SO	SOUTHERN	Atlanta	1949	1979	Merged with North Central Airlines to form Republic Airlines (1979–1986)
Southern Airways	Mississippi					Jackson–Medgar	1985	1987	Established a Flight Line [166]
Southern Aviation	Oklahoma					Lawton	1964	1974	Operated Cessna 182, Cessna 206 [167]
Southern Cross Airways							1959	1960	Operated C-46 [168]
Southern Express	Florida						1984	1986	Formerly known as Finair Express [169]
Southern International Airways	Florida						1981	1981	Successor of Florida Airlines operated as Air Florida Commuter [170]
Southern Jersey Airways	New Jersey		6J	ALC	ACOM	Cape May	1946	1991	Established as Atlantic City Airlines operating as Allegheny Commuter [171]
Southern Jersey Resorts Airways	New Jersey					Atlantic City	1965	1990	Operated Twin Otter, Dash-8 [172]
Southern Maryland Aviation	Maryland		SF			St. Mary's County	1977	1979	[173]
Southern Nevada Airlines	Nevada						1980	1981	[174]
Southern Skyways	Georgia					Atlanta	1980		A virtual airline (economics) which markets air travel branding
Southwest Air Fast Express	Oklahoma					St. Louis Lambert	1928	1929	Acquired by American Airlines
Southwest Airlines	Texas					San Antonio	1965	1967	Established as Wild Goose Flying Service [175]
Southwest Airways	California					San Francisco	1941	1958	Renamed to Pacific Air Lines
Southwest Ryan Airlines	Indiana					McIntyre Field	1928	n/a	Operated Ryan Brougham [5]
Special Aviation Systems	Michigan						2001	2004	Cargo carrier. Operated Embraer Bandeirante [176]
Speed Star Express	California						1968	2005	Operated Twin Otter [177]
Spirit Air	Alaska						2005	2009	Commuter and package carrier [178]
Spirit Aviation	California					Van Nuys	1994	1995	Charter operator [179]
Spirit Lake Airways	Iowa					Spencer	1977	1979	Renamed to Great Lakes Airlines [180]
Spirit of America Airlines	California		IM	IAS	BOXHALUER	Los Angeles	1959	1989	Established as IASCO [181]
Spokane Airways	Washington					Spokane	1990	2012	[182]
Sports Air Travel	Oregon			WCC	WEST COAST	Portland–Troutdale	1982	1999	[183]
Sports Air Travel	California					Burbank	1997	1997	To Ameriflight [184]
Sports by Air	South Carolina					Hilton Head	1968	1971	Operated Aero Commander 680 [185]
Sportsflight Airways	Arizona					Tucson	1993	1995	Renamed to Pacific International Airlines [186]
St. Germain Aviation	Illinois					Meigs Field	1964	1971	Operated Piper Twin Comanche [187]
St. Petersburg–Tampa Airboat Line	Florida					St. Petersburg	January 1914	May 1914	Benoist Type XIV
Stadvec Aviation	Illinois					Akron–Canton	1958	1961	Founded by Ernest Stadvec. Operated Piper PA-22 Tri-Pacer [188]
Stagecoach Airways	Texas					San Antonio	1958	1961	Operated Beech Twin Bonanza, Lockheed L.12 Electra [189]
Standard Air Cargo	California					San Diego	1946	1953	Renamed to Standard Airways [190]
Standard Air Lines	California					Los Angeles	1927	1930	Subsidiary of Aero Corporation of California. In 1930 acquired by Western Air Express
Standard Air Lines	California					Oakland	1945	1957	Established as Fireball Air Express [191]
Standard Airways	California		FD			San Diego	1953	1968	Established as Standard Air Cargo [192]
Standard Airways	Michigan					Pontiac	1966	1969	Operated Beech 18, Piper Navajo [193]
Star Air Service	Alaska					Anchorage	1932	1944	Renamed to Alaska Airlines
Starflight	Nevada					Reno–Tahoe	1975	1975	Operated BAC One-Eleven [194]
Starlight Express							1987	1991	Cargo feeder for FedEx Express [195]
Starflite	New York					White Plains	1965	1966	Contract service operator [196]
Starship Airlines	Arizona					Tucson	1991	2000	Operated Convair 240C, Convair 440F [197]
Starstruck Jet	Tennessee					Nashville	1998	1998	[198]
State Airlines	South Carolina					Charlotte Douglas	1940	1940	Operated Lockheed Lodestar, Bellanca Cruisair [5]
State Airlines	Florida					Ft. Lauderdale	1981	1984	[199]
StatesWest Airlines	Arizona		YW	SWJ	STATES	Phoenix Sky Harbor	1986	1993
Stateswide Airline	New Hampshire					Manchester–Boston	1964	1965	Operated de Havilland Dove [200]
Stearns Air Alaska	Alaska					Anchorage	1992	2001	[201]
Stewart Air Service	California					Los Angeles	1946	1971	[202]
Stol Air Commuter	California		VB			Fresno Yosemite	1972	1978	Renamed WestAir Commuter Airlines [203]
Stout Air Services	Michigan					Ford Airport	1925	1930	Purchased by National Air Transport
Strachan Skyways	Georgia					Hunter Field	1936	1938	[204]
Streamline Air	Massachusetts			SRY	STINGRAY	Hanscom Field	2010	2012
Suburban Airlines			AL			DuBois	1968	1989	To Allegheny Airlines
Suburban Airways	California
Summit Airlines	Pennsylvania		DU	SMM	SUMMITAIR	Philadelphia	1966	1986	Established as Del Air Cargo Airlines [205]
Summit Airways	Colorado					Denver	1946	1947	Established as Challenger Airlines [206]
Summit Aviation	Florida					Miami	1999	1999	Charter operator [207]
Sumo Airlines	New York		SM			New York Kennedy	1988	1996	Cargo operator. Operated Piper Lance [208]
Sun Air Express	Florida					Fort Lauderdale	2014	2016	Acquired by Southern Airways Express [209]
Sun Air International	Florida					Fort Lauderdale-Hollywood	2011	2014	Rebranded as Sun Air Express
Sun Aire Lines	California		OO			Palm Springs	1968	1984	Established as Borrego Springs Airlines. Merged into SkyWest Airlines
Sun Airlines	Missouri					St. Louis Lambert	1967	1970	Founded by George Caleshu. Operated Beech 18, Twin Otter, de Havilland Heron [210]
Sun Airlines	Florida		YX				1969	1978	[211]
Sun Jet International	Florida		JX	SJI	SUNJET	St. Pete–Clearwater	1993	1997	Founded by Tom Kolfenbach. Renamed to Southeast Airlines [212]
Sun Land Airlines	Nevada		RF			Reno	1980	1981	Operated single Boeing 737-200 [213]
Sun Pacific International	Arizona			SNP		Tucson	1995	1999	Operated Boeing 727-200 [214]
Sun Valley Airlines	Utah					Salt Lake City	1964	1972	Established as Janss Airways in 1964. Acquired by Key Airlines [215]
Sun Valley Key Airlines	Idaho					Friedman Memorial	1968	1972	Formerly Sun Valley Airlines renamed to Key Airlines
Sun West Airlines	Arizona		KY	SNW	SUN WEST	Phoenix Sky Harbor	1980	1985
Sunaire Express	Virgin Islands		OY	SUA	SUNBIRD	Saint Croix Rohlsen	1982	1994	Went bankrupt [216]
Sunbelt Airlines	Arkansas		JM	BTR		Harrell Field	1979	1984	Known as Jamaire until March 1982 [217]
Sunbird Air	Florida					Fort Lauderdale	1984	1989	Operated Convair 440 [218]
Sunbird Airlines	North Carolina		ED	SBD	SUNBIRD	Charlotte Douglas	1979	1987	Absorbed by Atlanta Express. Became CCAir in 1986. [219]
Sunbird Airlines	Tennessee					Nashville	1980	1980	Operated Piper Cherokee Six [220]
Sunbird Airways	Florida		B6			Orlando	1993	1996	[221]
SunCoast Airlines	Florida		WS	SNT	SUNCOAST	Fort Lauderdale-Hollywood	1986	1988	Went bankrupt. Operated Boeing 727-100
Sunjet Aviation	Florida					Orlando Sanford	1997	1999	Operated Cessna Citation V, Learjet 35 [222]
Sunrise Airlines	Nevada		OQ	SDC	SUNDANCE	Las Vegas McCarran	1967	2000	Established as Lake Powell Air Service [223]
Sunwest International
Sunworld International Airlines	Kentucky		SM	SWI	SUNWORLD	Cincinnati/Northern Kentucky	1996	2004
Sunworld International Airways	Nevada		JK	SWI	SUNWORLD	Las Vegas McCarran	1983	1988	Established as Jetwest International Airways
Supair	California					Buchanan Field	1950	1953	Operated DC-3 [224]
Superior Air	West Virginia					Fairmont	1972	1973	Operated BN Islander [225]
Superior Airlines	Georgia					Atlanta	1960	1963	Operated de Havilland Dove, Aero Commander [226]
Superior Airlines	Indiana						1961	1962
Superior Airlines	Arizona					Columbus Glenn	1994	2003	To Mesa Airlines
Susquehanna Airways	New York					Sidney	1979	1985	Established as Forde-Aire. Operated Riley Turbo Skyliner, Piper Aztec [227]
Swift Air	Florida		WQ	SWQ	SWIFTFLIGHT	Miami	1997	2019	Renamed to iAero Airways
Swift Aire Lines	California		WI			San Luis Obispo	1969	1981	Merged with Golden Gate Airlines
Swissjets	Florida					Fort Lauderdale	2000	2001	Renamed to Tourjets [228]
T
T & G Aviation	Arizona					Buckeye	1990	2000	Renamed to International Air Response. Operated Douglas DC-6, Douglas DC-7B [229]
TAB Express Airlines	Florida			TBI	TAB	Melbourne Orlando	1992	2005	Operated Beech 1900 [230]
TAG Airlines	Michigan					Detroit City	1959	1970	Shut down following crash
TAT-Maddux Air Lines							1929	1930	Merged with Western Air Express to form Transcontinental & Western Air
Tahoe Air	California		XP	CXP	CASINO EXPRESS	Lake Tahoe	1999	1999
Taku Glacier Air Gold	Alaska					Juneau	1984	1994	Operated Cessna Stationair, DHC Beaver [231]
Talkeetna Air Service	Alaska					Talkeetna	1947	1948	Renamed to Talkeetna Air Taxi [232]
Tamgass Aviation	Alaska						1964	1969	Renamed to Southcoast Airways [233]
Tanana Air Taxi	Alaska					Tanana	1972	1974	Renamed to Alaska Central Airways [234]
Tanner Airlines	California					Los Angeles	1930s	1930s	Operated Stinson Detroiter [5]
TapJets	North Dakota					Fargo Hector	2016	2018	[235]
Taquan Air Service	Alaska					Ketchikan	1977	2000	Renamed to Taquan Air. Operated DHC Beaver [236]
Tar Heel Aviation	North Dakota			THC	TARHEEL	Jacksonville Ellis	1975	2000	[237]
Tatonduk Flying Service	Alaska					Eagle	1977	1980	Renamed to Everts Air Alaska. Operated Cessna 180 [238]
Taxi Air Group	Ohio					Cleveland Burke Lakefront	1955	1957	Founded by William Knight. Renamed to TAG Airlines. Operated DHC Otter [239]
Ted	Illinois		UA	UAL	UNITED	Denver	2004	2009	Merged back into parent company United Airlines
Tejas Airlines	Texas		TB			San Antonio	1976	1980	Filed for Chapter 11 bankruptcy [240]
Telair International
Telford Aviation	Maine						1995	2004	[241]
Tempelhof Airways	Florida			TEH	TEMPELHOF	Fort Lauderdale	1981	1990	Operated from West Berlin
Temple Airlines							1968	1968	[242]
Tempus Jets	South Carolina					Greenville–Spartanburg	2007	2018	Executive jet charter. Went bankrupt [243]
TEMSCO Airlines	Alaska					Ketchikan	1986	1991	The helicopter division continue to operate as TEMSCO Helicopters Inc. [244]
Tennessee Airways	Tennessee		ZN	TEN	TENNESSEE	Knoxville McGhee	1978	1990	Operated Embraer Bandeirante [245]
TennesseeSkies	Tennessee					Nashville	2009	2012	A Pacific Wings subsidiary
Tepper Aviation	Florida					Crestview	1987	2006	[246]
Texas International Airlines	Texas		TI	TIA	TEXAS	Houston Intercontinental DFW Airport	1969	1982	Merged into Continental Airlines
Texas National Airlines	Texas			TXN	TEXAS NATIONAL	San Antonio	1986	1988	Established as Border Airlines [247]
The Air-Oasis Co	California					Long Beach	1963	1963	Operated DC-3 [248]
The Gulf Coast Airline	Louisiana					New Orleans	1923	1932	Renamed to Johnson Airways [249]
The Hagerstown Commuter	Maryland					Hagerstown	1962	1983	Operated as an Allegheny Commuter [250]
The Hawaii Express	Hawaii		LP	HEA		Los Angeles	1982	1983
The Lord's Airline	Florida		5Q			Miami	1986	1987
The Maui Commuter	Hawaii					Kahului	1975	1978	Founded by Jack Holzman and Robert Frost. Established as Ananda Air [251]
Thompson Aeronautical Corporation	Ohio					Cleveland	1928	1932	Renamed to Transamerican Airlines [5]
Thor Solberg Aviation	New York					Curtiss Field	1929	1930	Operated Great Lakes 2-T-1, Bellanca CH-200 [252]
Thunderbird Airlines	Utah					Ogden-Hinckley	1964	1969	Renamed to Key Airlines. Operated Twin Otter [253]
Tibben Flight Lines	Iowa					Cedar Rapids	1992	1996	Charter operator [254]
TMA Trans-Michigan Airlines	Michigan					Traverse City	1969	1972	Cargo carrier [255]
TMC Airlines	Michigan			TMM	WILLOW RUN	Willow Run	1994	2005	Cargo carrier. Operated L-188, DC-8 [256]
Tol Air	Puerto Rico		TI	TOL	TOL AIR		1983	2006	Acquired by Four Star Air Cargo
Tourjets	Florida					Fort Lauderdale	2001	2002	Established as Swissjets [257]
Tower Air	New York		FF	TOW	TEE AIR	New York Kennedy	1983	2000
TPA-The Aloha Airline	Hawaii					Honolulu	1950	1958	Established as Trans-Pacific Airlines [258]
TPI International Airways	Georgia		UF			Brunswick Golden Isles	1989	1996	[259]
Tradewinds Airlines	North Carolina		WI	TDX	TRADEWINDS EXPRESS	Piedmont Triad	1991	2010
Trans Air	Florida		GO	TRA	TRANS ISLAND	Fort Lauderdale–Hollywood	1982	1986	Established as Trans Island Airways [260]
Trans Air Lines	Louisiana					New Orleans Armstrong	1962	1963	Renamed to Air Lines. Operated Aero Commanders [261]
Trans Air Link	Florida					Miami	1986	1989	[262]
Trans Alaskan Airlines	Alaska					Anchorage	1955	1963	Operated DC-4, DC-6A, PBY-5A Catalina [263]
Trans American Charter	Illinois			ECQ		Chicago O'Hare	1992	1995	[264]
Trans Caribbean Airways	New York		TR	TCA			1945	1971	Acquired by American Airlines
Trans Continental Airlines	Michigan		TD	TCN	TRANSCOM	Willow Run	1974	1992	Established as International Airlines Academy. Rebranded as Express.Net Airlines
Trans East Airlines	New Hampshire					Manchester–Boston	1963	1972	Formed as Statewide Airlines
Trans East International	New York					Farmingdale	1982	1984	Established as New York Air. Renamed to Island Air. Operated Twin Otter, Embraer Bandeirante [265]
Trans Global Airlines	California					Long Beach	1957	1961	Founded by Donald Rich [266]
Trans Global Airlines	New Jersey					Newark Liberty	1979	1984	Charter carrier [267]
Trans Global Vacations							2002	2003	[268]
Trans International Airlines	California		TV		TRANSAMERICA	Oakland	1960	1986	Formed as Los Angeles Air Service (1946), rebranded as Transamerica Airlines
Trans International Express				BAP	BIG APPLE		1998	2002	[269]
Trans Island Airways	Florida		GO	TRA	TRANS ISLAND	Fort Lauderdale–Hollywood	1977	1982	Sold and renamed to Trans Air [270]
Trans Magic Airlines	Idaho					Boise	1969	1974	Merged into Air Idaho [271]
Trans National Airlines	California					Oakland	1973	1979	[272]
Trans Ocean Airways	Florida					Arcadia	1989	1990	Established as Gulf Air International [273]
Trans Penn Airlines	Pennsylvania					Reedsville	1971	1980	Operated Piper Navajo [274]
Trans Regional Airlines	Texas					Big Spring	1975	1977	Founded by Louis Rosembaum. Established as El Paso Transport [275]
Trans Sierra Airlines	Arizona			TSI		Tucson	1970	1971	Founded by Chris Condon and Allan Silliphant. Renamed to Sierra Pacific Airlines [276]
Trans Southern Airways	South Carolina					Florence	1976	1985	Established as Pee Dee Air Express Inc. [277]
Trans Southern Aieways	Georgia						1984	1985	Routes that had been dropped by Piedmont Airlines [278]
Trans States Airlines	Missouri		AX	LOF	WATERSKI	Chicago–O'Hare Denver	1989	2020	Shutdown due to travel disruptions caused by the COVID-19 pandemic
Trans Tropic Airlines	Florida					Miami
Trans World Airlines	Missouri		TW	TWA	TWA	New York Kennedy	1950	2001	Merged into American Airlines
Trans World Connection						New York Kennedy Los Angeles
Trans World Express					RZ	Philadelphia Northeast	1987	1995
Trans-Air-Link	Florida			GJB	SKY TRUCK	Opa Locka	1977	?
Trans-Cal Airlines	California					Long Beach	1968	1971	Operated Beech Queen Air, Beech Bonanza [279]
Trans-Central Airlines	Oklahoma		ZM	ACN		Oklahoma City	1980	1984	[280]
Trans-Colorado Airlines	Colorado		VJ	TCE	TRANS COLORADO	Gunnison–Crested Butte	1980	1988	Became a Continental Express carrier
Trans-Florida Airlines	Florida			TFA	TRANS FLORIDA	Daytona Beach	1966	2006	Established as Daytona Aviation in 1962 [281]
Trans-Marine Airways	New York					Daytona Beach	1945	1946	Charter services [282]
Trans-Michigan Airlines	Michigan					Traverse City	1969	1970	Operated Beech 99, Cherokee Six [283]
Trans-Mo Airlines	Missouri		XU				1966	1986
Trans-Nebraska Airlines	Nebraska						1971	1973	Founded by Tom Brown. Operated Cessna 402A [284]
Trans-Nevada Air Service	Nevada					Las Vegas McCarran	1968	1971	Commuter services. Operated Beech C-45 Expeditor [285]
Trans-Pacific Airlines	Hawaii					Honolulu	1946	1950	Renamed to TPA-The Aloha Airline. Operated C-47 [286]
Trans-Texas Airways	Texas		TT			Houston-Hobby Dallas-Love Field	1947	1968	Renamed to Texas International Airlines. Operated DC-3, Convair 240 [287]
Transair	New York					New York-LaGuardia	1946	1946	[288]
Transair Airlines	Florida					St. Pete–Clearwater	1946	1949	Operated DC-3, DC-4, Lockheed Super Electra, Lockheed Lodestar [289]
Transair Cargo	Florida					Miami	1972	1977	Established as Skyways International in 1962 [290]
Transair Hawaii	Hawaii					Honolulu	1946	1948	Operated C-46 [5]
Transamerica Airlines	California		TV	TVA	TRANS-AMERICA	Oakland	1979	1986	Established in 1948 as Los Angeles Air Services
Transcontinental & Western Air	New York					New York-LaGuardia	1930	1950	Renamed to Trans World Airlines; operated DC-1, DC-2 [291]
Transcontinental Air Transport							1928	1929	Merged with Maddux Air Lines to form TAT-Maddux Air Lines
TransMeridian Airlines	Georgia		T9	TRZ	TRANS MERIDIAN	Orlando Sanford	1995	2005	Established as Prime Air
Transocean Air Lines	California		TL		TALOA	Oakland	1946	1960	Went bankrupt [292]
TransOcean Airways	Louisiana		QG	GAT	GULFTRANS	New Iberia	1989	1990	Established as Gulf Air Transport. Charter operator
Transtar Airlines	Florida			TRH	TRANSTAR	Orlando	1992	1993	[293]
TranStar Airlines	Texas		MC	TST	TRANSTAR	Houston-Hobby	1986	1987	Shut down by parent company Southwest Airlines
Transtate Airlines	New York					New York-LaGuardia	1963	n/a	Operated Lockheed L-1049 [294]
Transwest Air Express	California			ACW		Oakland	1977	1981	Established as Zoom Zoom Air in 1973. Renamed to Air Charter West. Operated DC-3 [295]
Transwestern Airlines	Utah		WZ	TRW	TRANS WEST	Logan-Cache	1977	1983	Acquired by Horizon Air
Travel Air Aviation							1969	1972	As part of Allegheny Commuter. Operated Beech 99 [296]
Tri-Motor Safety Airlines	New York					Garden City	1929	1929	Rename to New York Safety Airlines. Operated Ford Trimotor (NC1780) [297]
Tri-State Airlines	Iowa					Rickenbacker	1930	1936	Renamed to Hanford Tri-State Airlines [298]
Tri-State Flying Service	West Virginia					Huntington Tri-State	1971	1972	Established as Air Enterprises in 1969 [299]
Tricon International Airlines	Texas		RI			Dallas Love Field	1967	1978	Operated Beech 18, DC-3 [300]
Trinity Air Bahamas	Florida					Fort Lauderdale–Hollywood	1993	1993	[301]
TriStar Airlines	Nevada		T3	TRY	TRISTAR AIR	Las Vegas McCarran	1995	1997
Tropic Air	Hawaii					Honolulu	1980	1989	Associated with Air Molokai [302]
Tropic Air	California					Burbank	1988	1988	[303]
Tropical Airways	New York					New York Kennedy	1986	1989	[304]
Tropics International	Florida					Miami	1968	1971	Operated Beech 18 [305]
Trump Shuttle	New York		TB	TPS	TRUMP	New York-LaGuardia	1989	1992	To US Airways Shuttle
Tulip City Executive Express	Minnesota					Holland	1995	1995	Operated Beech 18 [306]
Tulsa-Oklahoma City Airline	Oklahoma					Tulsa	1928	1929	Ownership transferred to Universal Aviation Corporation [307]
Turbo Air	Idaho					Boise	1995	1995	Charter carrier [308]
Turks Air Cargo	Florida					Miami	1972	2015	Founded by Robert Caravan [309]
Turner Airlines	Indiana					Indianapolis	1947	1950	Renamed to Lake Central Airlines [310]
TWC Aviation, Inc	California					San José	1998	2015	Acquired and rebranded into Landmark Aviation [311]
Twentieth Century Airlines	North Carolina					Charlotte Douglas	1946	1963	Founded by Glen Shave and Christopher Bachman. Operated DC-3, DC-4. To North American Airlines [312]
Tyee Airlines	Alaska		OF			Ketchikan	1975	1986	Operated DHC Beaver [313]
Tyme Airlines	Ohio					Cleveland Burke	1965	1967	Merged into Wright Airlines [314]
U
U Fly Air Freighters	Texas					Dallas Fort Worth	1973	1975	Cargo operator [315]
U.S. Airlines	New York					New York-LaGuardia	1945	1952	Non-scheduled services [316]
U.S. Aviation	Wyoming		BH			Riverton	1977	1979	Renamed to Air U.S. [317]
UltrAir	New York			ULT	ULTRAIR	New York Kennedy	1993	1994	[318]
UltrAir	Texas		RL	ULT		Houston Bush	1993	1994	Operated 727-200 [319]
Unalakleet Air Taxi	Alaska					Unalakleet	1953	1979	Renamed to Ryan Air [320]
United Couriers	California					Burbank	1971	1971	Merged with California Air Charter [321]
United Feeder Service	Illinois		U2	UFS	FEEDER EXPRESS	Chicago O'Hare	1993	2000	[322]
United Shuttle	California		UA	UAL	UNITED	San Francisco	1994	2001	Subsidiary of United Airlines, formerly Shuttle by United; folded back into United
United States Air Transport	New York					New York Curtis	1929	1930	Operated Ryan Brougham [5]
United States Overseas Airlines	New Jersey					Cape May	1946	1964	Carrier operating primarily for the US Military [323]
United Union Airways	Washington					Felts Field	1929	1929	Founded by W R Frentzel, C M Baker & Francis Baker [324]
Universal Air Lines Corporation	Missouri					St. Louis Lambert	1928	1934	Merged with 90 other airlines to form American Airlines
Universal Airlines	Michigan		UV	UTQ		Willow Run	1966	1972	Established as Zantop Air Transport. To Saturn Airways
Universal Airlines	Michigan					Willow Run	1990	1992	Cargo operator [325]
Universal Aviation Corporation	Missouri						1929		An airline holding company
Upper Valley Aviation	Texas					McAllen Miller	1964	1975	Operated Beech 99, Beech E18S [326]
Uraba, Medellin & Central Airways	New York					New York-LaGuardia	1955	n/a	[5]
US Aircoach Airlines	California					Hollywood Burbank	1949	1956	Founded by Louis Powell and Wyman Reynolds [327]
US Airways	Arizona		US	USA	US AIR	Phoenix Sky Harbor	1997	2015	Merged into American Airlines
US Airways Express						Phoenix Sky Harbor			Rebranded as American Eagle
US Airways Shuttle	Virginia					Washington National			Founded as Eastern Air Lines Shuttle, rebranded as American Airlines Shuttle
US Check Airlines	Ohio						1974	1974	Delivery of documents and small packages [328]
US Helicopter	New York		UH	USH	US HELI	Downtown Manhattan Heliport	2004	2009
USA3000 Airlines	Pennsylvania		US	GWY	GETAWAY	Philadelphia	2001	2012
USAfrica Airways	Virginia					Washington Dulles	1994	1995
USAir	Arizona					Phoenix Sky Harbor	1979	1997	Renamed to US Airways
Utah Pacific Airways	Utah					Ogden	1931	n/a	[5]
Uvalde Aero Service	Texas					Uvalde	1965	1977	Operated Lockheed L-12 Electra Junior, Piper Navajo, Piper Twin Comanche [329]
V
Vagabond Air Travel Club	Ohio						1970	1974	Operated DC-6B, L-188 Electra [330]
Vail Airways	Colorado						1966	1968	Founded by Gordon Autry [331]
Val-Air Lines	Texas					Mercedes	1950	n/a	Feeder service. Operated Beech Bonanza, Ryan Navion [5]
Valdez Airlines	Alaska					Anchorage	1980	1984	Merged with Air North to form Liberty Air [332]
Valdosta Phoenix Airlines	Georgia					Valdosta	1972	1973	[333]
Vale International Airlines	Tennessee			VIN		Nashville	1979	1980	[334]
Valley Airlines	California					Oakland	1968	1974	Merged with Ram Airways to form Pacific Northwest Airways [335]
Valley Airlines	Maine					Fort Kent	1981	1989	Renamed to Northeast Express [336]
Valley Airpark Commuter Service	Colorado					Denver	1975	1977	[337]
Valley Catalina Airlines	California					Van Nuys	1981	1981	[338]
Valley Isle Aviation	Hawaii					Kahului	1965	1967	[339]
ValuJet Airlines	Georgia		J7	VJA	CRITTER	Atlanta	1993	1997	Merged into AirTran Airways
Vance Air Services	Montana					Great Falls	1928	n/a	Founded by Clare Vance. Operated Stinson Detroiter [5]
Vance International Airways	Washington					Boeing Field	1949	1970	Became McCulloch International Airlines
Vanguard Airlines	Missouri		NJ	VGD	VANGUARD AIR	Kansas City	1994	2002	Low cost /low fare airline
Varney Air Lines	Idaho					Salt Lake City	1926	1934	Merged into United Airlines
Vee Neal Airlines	Pennsylvania					Latrobe	1980	1983	renamed to Jetstream International Airlines [340]
Vercoa Air Service	Illinois					Danville	1964	1975	Renamed to Britt Airways [341]
Vero Monmouth Airlines	Georgia		VM	VMA	VERO MAMMOUTH	Vero Beach	1973	1975	Operated de Havilland Heron, Martin 4-0-4 [342]
Veterans Air Lines	New Jersey					Newark	1945	n/a	Operated DC-3, DC-4 [343]
Via Airlines	Florida		VC	SRY		Orlando	2015	2019	Established as Charter Air Transport. Operated Embraer Brasilia, Embraer ERJ 145 [344]
Viair	New Jersey					Newark	1935	1935	Charter and resort air service [345]
ViaAir	Florida		VC	SRY	STINGRAY	Beckley Raleigh County	1997	2019	Went bankrupt
Victory Aviation Services International	New York					New York-LaGuardia	1995	1999	[346]
Viking Air Lines	California					Hollywood Burbank	1945	1949	Established as Aero-Van Express [347]
Viking International Airlines	Minnesota		VO	VIK	VIKING	Minneapolis–Saint Paul	1969	1994	Acquired by Eagle Air International [348]
Vintage Airways	Florida					Kissimmee	1992	1995	Founded by Richard Branson operated in 1940s livery [349]
Vintage Props and Jets	Florida		VQ	VPP	VINTAGE	New Smyrna Beach	1992	2008	Went bankrupt
Virgin America	California		VX	VRD	REDWOOD	San Francisco	2004	2018	Acquired by Alaska Airlines
Virgin Islands Seaplane Shuttle	US Virgin Islands			VSS	WATERBIRD	Saint Croix	1982	1989	[350]
Virginia Air Cargo	Maryland					Baltimore–Washington	1974	1979	Operated BN islander, Short Skyvan [351]
Visco Flying Service	California					Los Angeles	1964	1967	Operated shuttle service. Renamed to Imperial Airlines [352]
Viscount Air Service	Arizona			VCT	VISCOUNT AIR	Tucson	1992	1996	Operated B-727, B-737
Vision Airlines	Nevada		V2	RBY	RUBY	North Las Vegas	1994	2017	Established as Vision Air. Incorporated in Virginia. Revoked by State
VQ Airlines	Florida					Daytona Beach	1970	1973	Airline division of Volusia Aviation Service [353]
Vroman Aviation	Texas						1965	1972	Established as Champs Aviation [354]
W
Walatka Air Service	Alaska						1930	1930	[355]
Walker's International	Florida		XW	WRC		Fort Lauderdale	1982	2003	Established as Jet Hansa Corporation in 1967 [356]
Warsaw Aviation	Indiana					Warsaw	1971	1971	Third-level services. Operated Piper Twin Comanche, Piper Apache [357]
Waterman Airlines	Alabama					Mobile	1946	1948	Operated Lockheed Lodestar, DC-3 [358]
Washington Airlines	Maryland					Baltimore–Washington	1968	1969	STOL operation [359]
Washington Flying Service	Virginia					Washington	1928	1929	Scenic flights [360]
Washington-Baltimore Airways	Maryland					Baltimore–Washington	1961	1971	Operated Beech 18, Piper Apache [361]
Watermakers Air	Florida					Fort Lauderdale	1999	2018	Operated Cessna Grand Caravan [362]
Waterman Airlines	Alabama						1945	1947	Intrastate carrier [363]
Watertown Airways	South Dakota					Watertown	1935	1936	[5]
Webber Airlines	Alaska					Ketchikan Harbor Seaplane Base	1970	1979	Founded by Jim Webber. Merged with Flair Air to form Southeast Alaska Airlines. Operated DHC Beaver], Grumman Goose [364]
Wedekind-Schmidlapp Flying Service	Ohio					Hook Field	1932	1961	Founded by Larry Schmidlapp and George "Pappy" Wedekind. Operated Waco VKS-7 [365]
Wedell-Williams Air Service Corporation	Louisiana					Patterson	1929	1936	Founded by Jimmy Wedell and Harry Palmerston Williams. Acquired by Eastern Air Lines. Operated Lockheed Vega 5B [366]
Wes-Tex Aircraft	Texas					Lubbock Airport	1964	1971	Operated Piper Navajo, Piper Twin Comanche, Piper Cherokee [367]
West Central Airlines	Nebraska					Omaha	1966	1971	Operated de Havilland Dove, Cherokee Six, Cessna 182 [368]
West Coast Air Cargo	Oregon			WCC	WEST COAST	Portland–Troutdale	1982	1999	Cargo carrier [369]
West Coast Airlines	Washington		WC			Seattle–Tacoma	1941	1968	Merged with Pacific Air Lines and Bonanza Air Lines to form Air West which was then renamed Hughes Airwest in 1970
WestAir Airlines	California					Fresno Yosemite	1978	1986	Established as Stol Air Commuter. Renamed to WestAir Commuter Airlines [370]
WestAir Commuter Airlines	California		OE	SDU	SUNDANCE	Fresno Yosemite	1978	1992	Formerly Stol Air Commuter, to Mesa Air Group
Westair Transport	California						1947	1960	[371]
Westates Airlines	California New Jersey		WS	WSA	WESTATES	Los Angeles Atlantic City	1984	1995	Renamed to Gray Line Air [372]
Western Air Express	California					Los Angeles	1926	1930	Operated Douglas M-2, Fokker F-10 [373]
Western Air Express Texas	Texas					Midland	2004	2016	Operated Beech Queen Air 70 [374]
Western Air Industries	California					Redding	1960	1960	Aerial firefighting carrier. Renamed to Aero Union. Operated B-25 Mitchell [375]
Western Air Service	Nebraska					Eppley Airfield	1930	1930	Operated Ford Trimotor [5]
Western Air Stages	Colorado					Grand Junction	1972	1976	Operated Beech Queen Air, Riley Dove 400 [376]
Western Aircraft	Idaho					Gooding	1964	1971	Operated Beech 18, Piper Apache [377]
Western Aircraft Salvage	California					Santa Maria	1974	1980	Operated Beech 18, Piper Apache [378]
Western Airlines	California		WA	WAL	WESTERN	Los Angeles	1941	1987	Merged into Delta Air Lines
Western Airlines (2007)	Washington		XP	CXP	RUBY MOUNTAIN	Bellingham	2007	2007
Western Alaska Airlines	Alaska					Kodiak	1940	1973	Merged with Kodiak Airways to form Kodiak Western Alaska [379]
Western Express Air	Arizona					Laughlin/Bullhead		2007
Western Pacific Airlines	Colorado		W7	KMR	KOMSTAR	Colorado Springs	1995	1998
Westflight Aviation	Alaska					Ketchikan	1981	1986	Acquired by Temsco Airlines [380]
WestJet Express	Nevada					Fresno Yosemite	1998	1999	Renamed to Allegiant Air [381]
Westward Airways	Nebraska		CN	WWD	WESTWARD	Western Nebraska	2004	2005
Wheeler Airlines	North Carolina					Raleigh–Durham	1969	1991	Established as Wheeler Flying Service [382]
Whidbey Flying Service	Washington					Oak Harbor	1964	1969	Founded by Wes Luipen. To Puget Sound Airlines [383]
Wien	Alaska					Anchorage	1982	1984	[384]
Wien Air Alaska			WC	WAA			1973	1982	Several name changes over the years, final name Wien [385]
Wien Airways of Alaska							1926	1935	Established as Northern Air Transport [386]
Wien Alaska Airways							1935	1968	Merged with Northern Consolidated Airlines to form Wien Consolidated Airlines [387]
Wien Consolidated Airlines							1968	1973	Formed by the merger of Wien Alaska Airlines and Northern Consolidated Airlines [388]
Wilbur's Inc.	Alaska					Anchorage	1984	1992	[389]
Wild Goose Flying Service	Texas					San Antonio	1984	1992	[390]
Wildblue Yonder-Aero Taxi	Idaho					Lemhi County	1998	1998	[391]
Williams Air	New Jersey						1981	1983	Operated BN Islander [392]
Wilmington Catalina Airlines	California					Catalina	1931	1941	[393]
WinAir Airlines	Utah			WNA	WINAIR	Salt Lake City	1997	1999
Winged Cargo Company	Pennsylvania					Northeast Philadelphia	1931	1946	Freight service. Operated DC-3 towing Waco CG-4 [394]
Wings Air	Georgia			WAI		Atlanta	2008	2010	[395]
Wings Airways	Pennsylvania		WQ	WAW	WING SHUTTLE	Blue Bell Wings Field	1977	1991
Wings Express	California					Burbank	1993	1993	Cargo carrier. Acquired by Ameriflight [396]
Wings of Alaska	Alaska		K5	SQH	SASQUACH	Juneau	1982	2017	Founded by Dean Williams and Billy Bernhardt. Established as Southeast Skyways. Operated Cessna 207, DHC-3 Otter
Wings West Airlines	California		RM	WWM	WINGS WEST	McChesney Field	1979	1998	Later operated as American Eagle, then merged into Simmons Airlines
Winkys Fish Airlines	Alaska					Anchorage	1990	1990	Operated Boeing 727. Salmon transport [397]
Winnipesaukee Airlines	Florida					Tampa	1976	1977	[398]
Wisconsin Central Airlines	Wisconsin					Clintonville	1946	1952	Renamed to North Central Airlines [399]
Wise Airlines	Texas		4W			San Angelo	1983	1985	Operated Beech 99, Twin Otter. Went bankrupt [400]
Woodley Airways	Alaska					Merrill Field	1932	1945	Renamed to Pacific Northern Airlines [401]
Woods Air Service	Alaska					Palmer	1961	2000	[402]
World Airways	Georgia		WO	WOA	WORLD	Atlanta	1948	2014
World American Airlift	California					Fresno Yosemite	1968	1970	[403]
World Wide Airlines	Alaska					Anchorage	1956	1962	Established as Pearson-Alaska Airlines in 1948. Operated DC-4, C-46, L-749, L-1049 [404]
Worldwide Airlines	Illinois					Chicago Midway	1983	1986	Subsidiary of Carefree Vacations Inc. [405]
Wrangler Aviation	North Carolina					Piedmont Triad	1973	1991	Established as Bluebell Aviation in 1969. Renamed to Tradewinds Airlines [406]
Wright Airlines	Ohio		FW	WRT	WRIGHT	Cleveland Burke	1966	1983	Went bankrupt
WTC Air Freight	New Jersey						1967	1987	Acquired by BAX Global [407]
Wyoming Air Service	Wyoming					Cheyenne	1930	1937	Renamed to Inland Air Lines. Operated Stinson Junior, Boeing 247D [408]
Wyoming-Montana Air Lines	Wyoming					Casper–Natrona	1930	1938	Renamed to Inland Air Lines in 1938 [409]
X
Xtra Airways	Florida		XP	CXP	CASINO EXPRESS	Houston-Hobby	1987	2021	Founded as Casino Express Airlines commenced operations in 1989. Rebranded as Avelo Airlines.
Y
Yankee Airlines	Massachusetts					Pittsfield	1962	1968	Acquired by Executive Airlines. Operated de Havilland Dove [410]
Yosemite Airlines	California		JE			Columbia	1975	1981	[411]
Yukon Air Service	Alaska					Fairbanks	1967	1973	Founded by Roger Dowding. Renamed to Air North [412]
Yutana Airlines	Alaska					Anchorage	1987	1994	Renamed to Alaska Central Express [413]
Yute Air	Alaska		4Y	UYA		Bethel	2004	2017	[414]
Yute Air Alaska	Alaska					Bethel	1974	2000	Established as Bob Harris Flying Service. Renamed to Flight Alaska [415]
Z
Zantop Air Transport	Michigan					Willow Run	1962	1966	To Universal Airlines
Zantop Flying Service	Michigan					Willow Run	1946	1962	Became Zantop Air Transport
Zantop International Airlines	Michigan		VK	ZAN	ZANTOP	Willow Run	1972	2005
Zetta Jet	California					Burbank	2015	2017	Established as Advanced Air Management [416]
Zia Airlines	New Mexico					Las Cruces	1972	1980	Renamed to Air New Mexico. Air ambulance services [417]
Zimmerly Air Lines	Idaho					Boise	1942	1946	Renamed Empire Airlines [418]
Zoom Zoom Air	California					Oakland	1973	1974	Renamed to Air Charter West. Operated Basler BT-67 [419]