Showing 1,012 registered airlines with a combined fleet of 8,278 airframes.
| Airline Name | ICAO / IATA | Fleet Size |
|---|---|---|
| Airshop | — / FF | 0 |
| AirTran Airways | TRS / FL | 0 |
| Airvantage Incorporated | AVV | 0 |
| Airway Express | AEX | 0 |
| AIS Airlines | PNX | 0 |
| Alas Uruguay | ALY / YZ | 0 |
| Alaska Airlines | ASA / AS | 232 |
| Alaska Central Express | AER / KO | 7 |
| Alaska Island Air | AAK | 0 |
| Allegheny Commuter Airlines | ALO | 0 |