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Major Airlines of United States

Updated: Nov 16, 2020

AirTran Airways

AirTran Airways

IATA Designator: FL, ICAO Designator: TRS, Callsign: CITRUS

Orlando-based low cost carrier serving the eastern and central United States, its main hubs are at Hartsfield-Jackson Atlanta International Airport (ATL), Atlanta and General Mitchell International Airport (MKE), Milwaukee.

Alaska Air Group

Alaska Airlines / Horizon Air

IATA Designator: AS, ICAO Designator: ASA, Callsign: ALASKA

The Seattle-based Alaska Air Group with its subsidiaries of Alaska Airlines and Horizon Air. Alaska Airlines is a major US carrier with its hubs at Sea-Tac Airport, Ted Stevens Anchorage International Airport, Anchorage, and Portland International Airport, Portland. Horizon Air is a regional low-cost airline that serves 52 cities in the United States, Canada and Mexico

American Airlines

American Airlines

IATA Designator: AA, ICAO Designator: AAL, Callsign: AMERICAN

Formerly the world's largest airline (still No. 2) with its main hub at Dallas/Fort Worth International Airport (IATA code: DFW).

American Eagle Airlines

American Eagle Airlines

IATA Designator: MQ, ICAO Designator: EGF, Callsign: EAGLEFLIGHT

American Eagle Airlines is based in Fort Worth, Texas. American Eagle and Executive Airlines based in San Juan, Puerto Rico are regional affiliates of American Airlines. The American Eagle network is the largest regional airline system in the world, with over 1700 daily flights to more than 150 cities throughout the United States, Canada, the Bahamas, the Caribbean and Mexico.

Atlantic Southeast Airlines (ASA)

Atlantic Southeast Airlines

IATA Designator: EV, ICAO Designator: ASQ, Callsign: ACEY

Atlantic Southeast Airlines is a major U.S. airline carrier with its main hub at Hartsfield-Jackson Atlanta International Airport (ATL).



IATA Designator: OH, ICAO Designator: COM, Callsign: COMAIR

Comair, a subsidiary of Delta Air Lines, is a major U.S. carrier and is one of the world's largest regional airlines. Comair has its main hub at Cincinnati-Northern Kentucky International Airport (CVG), Cincinnati.

Continental Airlines

Continental Air Lines

IATA Designator: CO, ICAO Designator: COA, Callsign: CONTINENTAL

Continental Air Lines is a major U.S. airline based Houston, Texas. United Continental Holdings, Inc. (NYSE: UAL) is the holding company for both United Airlines and Continental Airlines. Together with United Express, Continental Express and Continental Connection, these airlines operate a total of approximately 5,800 flights a day to 371 airports throughout the Americas, Europe and Asia.

Delta Airlines

Delta Air Lines

IATA Designator: DL, ICAO Designator: DAL

Delta operates an extensive domestic and international network and is the world's largest airline operating under a single certificate. Delta's main hub is at Hartsfield-Jackson Atlanta International Airport, Atlanta.

Frontier Airlines

Frontier Airlines

IATA Designator: F9, ICAO Designator: FFT, Callsign: FRONTIER

Frontier Airlines is a major U.S. airline carrier a wholly owned subsidiary of Indianapolis-based Republic Airways Holdings Inc, an airline holding company that owns Chautauqua Airlines, Lynx Aviation, Republic Airlines and Shuttle America. Frontier operates approximately 550 daily departures and arrivals from its three hubs at Denver International Airport (DEN), General Mitchell International Airport (MKE), Milwaukee, and Kansas City International Airport (MCI),

Hawaiian Airlines

Hawaiian Airlines

IATA Designator: HA, ICAO Designator: HAL, Callsign: HAWAIIAN

Honolulu-based major airline of the United States. It is Hawaii's first and largest airline. The airline operates its main hub at Honolulu International Airport (HNL).

JetBlue Airways

JetBlue Airways

IATA Designator: B6, ICAO Designator: JBU, Callsign: JETBLUE

New York based low cost airline. JetBlue serves 63 destinations in 22 U.S. states (including Puerto Rico), and eleven countries in the Caribbean and Latin America. Main base at New York's John F. Kennedy International Airport,

Mesa Airlines

Mesa Airlines

IATA Designator: YV, ICAO Designator: ASH, Callsign: AIRSHUTTLE

U.S. regional airline based in Phoenix, Arizona. Mesa Airlines operates flights as United Express, US Airways Express, Delta Connection (via Freedom Airlines), and under the brand go! for flights within the Hawaiian Islands.

SkyWest Airlines

SkyWest Airlines

IATA Designator: OO, ICAO Designator: SKW, Callsign: SKYWEST

A major U.S. regional airline headquartered in St. George, Utah. SkyWest serves as a feeder airline for various major carriers. SkyWest's largest stations are Denver International Airport (DEN) and Salt Lake City International Airport (SLC).

Southwest Airlines

Southwest Airlines

IATA Designator: WN, ICAO Designator: SWA, Callsign: SOUTHWEST

A major American low-cost carrier based in Dallas, Texas. In 2010 Southwest was the largest airline in the United States based on domestic passengers carried.

Spirit Airlines

Spirit Airlines

IATA Designator: NK, ICAO Designator: NKS, Callsign: SPIRITWINGS

Low-cost carrier operating scheduled flights throughout the Americas. Spirit maintains bases in Fort Lauderdale, Atlantic City, and Detroit.

United Airlines

United Airlines

IATA Designator: UA, ICAO Designator: UAL, Callsign: UNITED

Was the World's second largest airline and still is a major U.S. airline with its main hub at Chicago's O'Hare International Airport (ORD).

US Airways

US Airways

IATA Designator: US, ICAO Designator: USA, Callsign: USAIR

A major American carrier, it operates hubs in Charlotte, Phoenix and Philadelphia.

World Airways

World Airways

IATA Designator: WO, ICAO Designator: WOA, Callsign: WORLD

World Airways is a major American non-scheduled airline headquartered in Peachtree City, Georgia.

Other US Airlines

Allegiant Air

IATA Designator: G4, ICAO Designator: AAY, Callsign: ALLEGIANT

Scheduled Air Carrier, sometimes spelled wrong as Allegent Airlines; offers scheduled and charter airline operations throughout the United States. Allegiant offers discount flights and vacation packages, and airfare and hotel packages.


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