Showing 1,012 registered airlines with a combined fleet of 8,882 airframes.
| Airline Name | ICAO / IATA | Fleet Size |
|---|---|---|
| Universal Jet Aviation | UJT | 0 |
| University of North Dakota | NDU | 18 |
| US Airports Air Charter | UCH | 0 |
| US Airways | AWE / US | 0 |
| US Army Parachute Team | GKA | 0 |
| US Express | USX | 0 |
| US Jet | USJ | 0 |
| US Marshals Service | MSH | 0 |
| USA Jet Airlines | JUS / U7 | 6 |
| USA3000 Airlines | GWY / U5 | 0 |