Showing 1,012 registered airlines with a combined fleet of 9,649 airframes.
| Airline Name | ICAO / IATA | Fleet Size |
|---|---|---|
| Southeast Express Airlines | SXE | 0 |
| Southeastern Airways | PTM | 0 |
| Southern Air | SOO / 9S | 13 |
| Southern Airways | SOU | 0 |
| Southern Airways Express | FDY / 9X | 20 |
| Southern Cross Aviation | SXA | 0 |
| Southern Jersey Airways, Inc. | ALC | 0 |
| Southern Ohio Aviation Sales | SOH | 0 |
| Southern Seaplane | SSC | 0 |
| Southport Air Service | XPG | 0 |