Showing 1,012 registered airlines with a combined fleet of 8,882 airframes.
| Airline Name | ICAO / IATA | Fleet Size |
|---|---|---|
| Solairus Aviation | TWY | 63 |
| Sonalysts | SYI | 0 |
| Soonair Lines | SNL | 0 |
| South Carolina Aeronautics Commission | PLT | 0 |
| South Central Air | SCA | 5 |
| South Pacific Island Airways | SPI | 0 |
| Southeast Air | SEA | 0 |
| Southeast Airlines (Sun Jet International) | SNK | 0 |
| Southeast Airmotive | SPU | 0 |
| Southeast Correct Craft | SOT | 0 |