Showing 1,012 registered airlines with a combined fleet of 8,828 airframes.
| Airline Name | ICAO / IATA | Fleet Size |
|---|---|---|
| Notams International | XNT | 0 |
| Nxt Jet | KPO | 2 |
| Ocean Wings Commuter Service | TUK | 0 |
| Oklahoma Department of Public Safety | OKL | 0 |
| Omni Air International | OAE / OY | 9 |
| Omni Air Transport | DRL | 8 |
| Open Skies Consultative Commission | OSY / 1L | 0 |
| OSACOM | JPA | 0 |
| PAC Air | PCR | 0 |
| Paccair | WIS | 2 |