Showing 394 registered airlines with a combined fleet of 1,324 airframes.
| Airline Name | ICAO / IATA | Fleet Size |
|---|---|---|
| Celtic West | CWE | 0 |
| Centreline | CLF | 5 |
| Church Fenton Flying Training Unit | CFN | 0 |
| Cityair (Chester) Limited | CAQ | 0 |
| Claessens International Limited | FMC | 0 |
| Clasair | CSF | 0 |
| Clowes Estates Limited | CLD | 0 |
| Club 328 | SDJ | 0 |
| Cobra Aviation | CBR / 0C | 1 |
| Coltishall Flying Training Unit | COH | 0 |