Showing 1,012 registered airlines with a combined fleet of 8,698 airframes.
| Airline Name | ICAO / IATA | Fleet Size |
|---|---|---|
| Casper Air Service | CSP | 0 |
| Castle Aviation | CSJ | 10 |
| Catalina Flying Boats | CBT | 2 |
| Centennial Airlines | CNL | 0 |
| Central Airlines | CTL | 0 |
| Central Aviation | YOG | 0 |
| Central Flying Service | CHA | 0 |
| Central Skyport | CSI | 2 |
| Centre Airlines | DTV | 0 |
| Centurion Air Cargo | CWC / WE | 1 |