| Romanshorn to Sesimbra | 1,120.97 mi (1,804.02 km) |
| Romanshorn to Setubal | 1,108.82 mi (1,784.47 km) |
| Romanshorn to Sever do Vouga | 994.11 mi (1,599.87 km) |
| Romanshorn to Silves | 1,152.45 mi (1,854.69 km) |
| Romanshorn to Sines | 1,133.43 mi (1,824.08 km) |
| Romanshorn to Sintra | 1,117.37 mi (1,798.23 km) |
| Romanshorn to Sobrado de Paiva | 978.24 mi (1,574.32 km) |
| Romanshorn to Sobral de Monte Agraco | 1,098.00 mi (1,767.06 km) |
| Romanshorn to Soure | 1,032.78 mi (1,662.10 km) |
| Romanshorn to Tabua | 994.39 mi (1,600.31 km) |
| Romanshorn to Tavira | 1,124.95 mi (1,810.44 km) |
| Romanshorn to Tomar | 1,042.25 mi (1,677.34 km) |
| Romanshorn to Tondela | 990.43 mi (1,593.94 km) |
| Romanshorn to Torre de Moncorvo | 922.75 mi (1,485.02 km) |
| Romanshorn to Torres Novas | 1,052.81 mi (1,694.33 km) |
