Airlines
| Name | Country | ICAO | |
|---|---|---|---|
| Sriwijaya Air Flight Status | Indonesia | SJY | |
| Star Air Flight Status | India | SDG | |
| Sun Country Airlines Flight Status | United States | SCX | |
| Sunstate Airlines Flight Status | Australia | QLK | |
| Sunwest Home Aviation Flight Status | Canada | CNK | |
| Sunwing Airlines Flight Status | Canada | SWG | |
| Surf Air Flight Status | United States | URF | |
| Swift Air (Interstate Equipment Leasing) Flight Status | United States | SWQ | |
| Swissair Flight Status | Switzerland | SWR | |
| Swoop Flight Status | Canada | WSW | |
| Tag Aviation UK Flight Status | United Kingdom | VIP | |
| TAM Brazilian Airlines Flight Status | Brazil | TAM | |
| TAM Mercosur Flight Status | Paraguay | LAP | |
| TAP Portugal Flight Status | Portugal | TAP | |
| Taquan Air Services Flight Status | United States | TQN |