Showing 1,012 registered airlines with a combined fleet of 8,882 airframes.
| Airline Name | ICAO / IATA | Fleet Size |
|---|---|---|
| Skyline Aviation Services | SKN | 0 |
| Skymaster Air Taxi | SDD | 0 |
| Skymaster Airlines | SKC | 0 |
| Skystar International | SSK | 0 |
| Skywalk Airlines | SYX / AL | 0 |
| Skyway Enterprises | SKZ | 0 |
| SkyWest Airlines | SKW / OO | 326 |
| Skyworld Airlines | SPC | 0 |
| Smithair | SMH | 0 |
| Smithkline Beacham Clinical Labs | SBQ | 0 |