Showing 39 registered airlines with a combined fleet of 219 airframes.
| Airline Name | ICAO / IATA | Fleet Size |
|---|---|---|
| Phuket Air | VAP / 9R | 0 |
| Siam Airnet | RBR | 0 |
| Siam GA | SGN | 0 |
| Silver Cloud Air | SCR | 5 |
| Sky Eyes | SEQ / I6 | 0 |
| SkyStar Airways | SKT / XT | 0 |
| Spark Air | THB | 0 |
| Spree Flug | SFG | 2 |
| Thai Air Cargo | TCG / T2 | 0 |
| Thai AirAsia | AIQ / FD | 30 |