Showing 1,012 registered airlines with a combined fleet of 8,818 airframes.
| Airline Name | ICAO / IATA | Fleet Size |
|---|---|---|
| May Air Xpress | MXP | 0 |
| McCall Aviation | MKL | 0 |
| McNeely Charter Services | MDS | 2 |
| Med-Trans of Florida | MEK | 0 |
| Medjet International | MEJ | 0 |
| Mercury Aircourier Service | MEC | 0 |
| Meridian Air Cargo | MRD | 0 |
| Merlin Airways | MEI | 1 |
| Mesa Airlines | ASH / YV | 78 |
| Mesaba Airlines | MES | 0 |