209-951-7521
| Airline | Image | Focus cities | Notes |
|---|---|---|---|
| Alaska Airlines |  |
Seattle/Tacoma Anchorage, Los Angeles Portland (OR), San Francisco, San Diego, San Jose (CA) |
Founded as McGee Airways and commenced operations in 1944 as Alaska Airlines. |
| Allegiant Air |  |
Las Vegas Bellingham, Cincinnati Fort Lauderdale, Fort Walton Beach, Knoxville, Los Angeles, Myrtle Beach Oakland, Orlando/Sanford Phoenix/Mesa, Pittsburgh, Punta Gorda (FL), St. Petersburg/Clearwater |
Founded as WestJet Express and commenced operations in 1998 as Allegiant Air. |
| American Airlines |  |
Dallas/Fort Worth Charlotte, Chicago-O'Hare, Los Angeles Miami, New York-JFK New York-LaGuardia, Philadelphia Phoenix-Sky Harbor Washington-National |
Founded as American Airways and commenced operations in 1936 as American Air Lines; largest airline in the world based on airline company revenue, scheduled passenger miles flown (per year), and fleet size. |
| Delta Airlines |  |
Atlanta Detroit, Los Angeles Minneapolis/St. Paul, New York-JFK, New York-LaGuardia, Salt Lake City, Seattle/Tacoma Boston, Cincinnati, Raleigh/Durham |
Founded as Huff Daland Dusters and commenced operations in 1929 as Delta Air Service; largest airline in the world based on number of passengers served per year. |
| Frontier Airlines |  |
Denver Atlanta, Austin Chicago-O'Hare Cincinnati, Cleveland Las Vegas, Miami, Orlando Philadelphia, Raleigh/Durham San Antonio, Trenton |
|
| Hawaiian Airlines |  |
Honolulu Kahului Kailua-Kona Lihue |
Founded as Inter-Island Airways in early 1929 and commenced operations in late 1929 as Hawaiian Airlines |
| JetBlue Airways |  |
New York-JFK Boston Fort Lauderdale Long Beach Orlando San Juan |
Founded as New Air and commenced operations in 2000 as JetBlue Airways. |
| Southwest Airlines |  |
Dallas-Love Atlanta, Baltimore Chicago-Midway, Denver, Houston-Hobby, Las Vegas, Oakland, Orlando, Phoenix-Sky Harbor, Austin, Fort Lauderdale, Los Angeles, Nashville, Sacramento San Diego, San Jose (CA), St. Louis Tampa |
Founded as Air Southwest and commenced operations in 1971 as Southwest Airlines. |
| Spirit Airlines |  |
Fort Lauderdale Detroit Las Vegas Atlantic City Chicago-O'Hare Dallas/Fort Worth |
Founded as Charter One. |
| Sun Country Airlines |  |
Minneapolis/St. Paul Dallas/Fort Worth |
Commenced operations in 1983. |
| United Airlines |  |
Chicago-O'Hare Denver, Guam Houston-Intercontinental Los Angeles, Newark San Francisco Washington-Dulles, Cleveland |
Founded as Varney Air Lines and commenced operations in 1931 as United Air Lines. |
| Airline | Image | IATA | Callsign | Notes |
|---|---|---|---|---|
| Air Wisconsin |  |
Appleton Chicago-O'Hare Milwaukee Washington-Dulles |
Operates as United Express | |
| Cape Air |  |
Hyannis Billings, Boston Nantucket, St. Louis San Juan Albany Martha's Vineyard |
||
| CommutAir |  |
Newark, Washington-Dulles | Operates as United Express. | |
| Compass Airlines |  |
As Delta Connection: Minneapolis/St. Paul Los Angeles Seattle/Tacoma As American Eagle: Los Angeles |
Commenced operations in 2007. Operates as Delta Connection and American Eagle. | |
| Contour Airlines |  |
Smyrna (TN) | ||
| Elite Airways | No image | Orlando/Melbourne Newark Portland (ME) |
Commenced operations in 2014. | |
| Endeavor Air |  |
Minneapolis/St. Paul Atlanta Detroit New York-JFK New York-LaGuardia |
Founded as Express Airlines I. Operates as Delta Connection. | |
| Envoy Air |  |
Dallas/Fort Worth Chicago-O'Hare New York-LaGuardia Miami New York-JFK |
Founded as American Eagle Airlines. Operates as American Eagle. | |
| ExpressJet |  |
As United Express: Houston Chicago-O'Hare, Newark As Delta Connection: Atlanta, Detroit As American Eagle: Dallas/Fort Worth |
Commenced operations in 1987. Operates as United Express, Delta Connection and American Eagle. | |
| GoJet Airlines |  |
As United Express: Chicago-O'Hare Denver As Delta Connection: Cincinnati Detroit |
Commenced operations in 2005. Operates as United Express and Delta Connection. | |
| Great Lakes Airlines |  |
Denver | ||
| Horizon Air |  |
Seattle/Tacoma Portland (OR) |
Operates as Alaska Airlines. | |
| Mesa Airlines |  |
As American Eagle: Phoenix-Sky Harbor Dallas/Fort Worth As United Express: Houston-Intercontinental Washington-Dulles |
Founded as Mesa Air Shuttle. All but one aircraft operated as American Eagle and United Express | |
| PenAir |  |
Anchorage Boston Portland (OR) |
Founded as Peninsula Airways. Operates as Alaska Airlines. | |
| Piedmont Airlines |  |
Charlotte Philadelphia Washington-National |
Founded as Henson Aviation and commenced operations in 1962. Operates as American Eagle. | |
| PSA Airlines | No Image | Charlotte Philadelphia Washington-National |
Founded as Vee Neal Airlines. Operates as American Eagle. | |
| Ravn Alaska |  |
Anchorage Aniakm, Barrow, Bethel, Deadhorse, Fairbanks Kotzebue, Nome, Unalakleet Galena St. Mary's (AK) |
Founded as Economy Helicopters. | |
| Republic Airline | No image |
As American Eagle: Indianapolis Columbus (OH), Kansas City, Miami New York-LaGuardia, Philadelphia Pittsburgh, Washington-National As United Express: Indianapolis Chicago-O'Hare, Columbus (OH) Kansas City, Newark, New York-LaGuardia Pittsburgh, Washington-National, As Delta Connection: Indianapolis Chicago-O'Hare, Columbus (OH), New York-LaGuardia |
Commenced operations in 2005. Operates as American Eagle, United Express and Delta Connection. | |
| Silver Airways |  |
Fort Lauderdale Orlando Tampa |
||
| SkyWest Airlines |  |
As Delta Connection: Atlanta, Cincinnati, Detroit, Los Angeles Minneapolis/St. Paul, Salt Lake City, Seattle/Tacoma As United Express: Chicago-O'Hare, Denver, Houston-Intercontinental, Los Angeles, San Francisco As American Eagle: Chicago-O'Hare, Los Angeles, Phoenix-Sky Harbor As Alaska Airlines: Portland (OR), Seattle/Tacoma |
Operates as Delta Connection, United Express, American Eagle and Alaska Airlines. . | |
| Trans States Airlines | No Image |
As United Express: Chicago-O'Hare Denver Washington-Dulles As American Eagle: New York-JFK New York-LaGuardia |
Founded as Resort Air. Operates as United Express and American Eagle. | |
| ViaAir |  |
Orlando Austin Charlotte |