| Gebze to Sesimbra | 2,040.69 mi (3,284.17 km) |
| Gebze to Setubal | 2,028.36 mi (3,264.33 km) |
| Gebze to Sever do Vouga | 1,962.42 mi (3,158.20 km) |
| Gebze to Silves | 2,033.11 mi (3,271.98 km) |
| Gebze to Sines | 2,038.56 mi (3,280.74 km) |
| Gebze to Sintra | 2,048.57 mi (3,296.86 km) |
| Gebze to Sobrado de Paiva | 1,952.85 mi (3,142.81 km) |
| Gebze to Sobral de Monte Agraco | 2,032.16 mi (3,270.44 km) |
| Gebze to Soure | 1,986.99 mi (3,197.76 km) |
| Gebze to Tabua | 1,950.95 mi (3,139.76 km) |
| Gebze to Tavira | 1,993.59 mi (3,208.38 km) |
| Gebze to Tomar | 1,983.60 mi (3,192.29 km) |
| Gebze to Tondela | 1,951.26 mi (3,140.25 km) |
| Gebze to Torre de Moncorvo | 1,892.74 mi (3,046.08 km) |
| Gebze to Torres Novas | 1,991.97 mi (3,205.76 km) |
