Sân bay quốc tế
| Airline Name | ICAO | IATA | Callsign | Country |
| Suncoast Aviation | SNT | United States | ||
| Sundsvallsflyg | Sweden | |||
| SunExpress | SXS | XQ | Turkey | |
| Sunstate Airlines (QantasLink) | SSQ | SUNSTATE | Australia | |
| Sunways | SWW | IS | Turkey | |
| Sunways Sweden | SWY | Sweden | ||
| Sunwing Airlines | SWG | WG | SUNWING | Canada |
| Sunworld International Airlines | SWI | SM | United States | |
| Superior International Airlines | SSI | Nigeria | ||
| Surinam Airways | SLM | PY | Suriname | |
| Swazi Express Airways | SWX | Q4 | Swaziland | |
| Swe Fly | Sweden | |||
| Swedline Express | SRL | SM | Sweden | |
| Swiflite Aircraft Corporation | United States | |||
| Swift Air | SWQ | United States | ||
| Swift Aviation Group | United States | |||
| Swiftair | SWT | Spain | ||
| Swiss | SWR | LX | SWISS | Switzerland |
| Swiss World Airways | SWO | SO | Switzerland | |
| Swissair | SWR | SR | SWISSAIR | Switzerland |
| Swisswings | RQX | RQ | SWISSWINGS | Switzerland |
| Syrian Arab Airlines | SYR | RB | Syrian Arab Republic | |
| Syrian Pearl | Syrian Arab Republic |