| Unterwellenborn to Setubal | 1,297.72 mi (2,088.49 km) |
| Unterwellenborn to Sever do Vouga | 1,170.45 mi (1,883.66 km) |
| Unterwellenborn to Silves | 1,350.35 mi (2,173.18 km) |
| Unterwellenborn to Sines | 1,325.66 mi (2,133.44 km) |
| Unterwellenborn to Sintra | 1,302.47 mi (2,096.13 km) |
| Unterwellenborn to Sobrado de Paiva | 1,152.66 mi (1,855.03 km) |
| Unterwellenborn to Sobral de Monte Agraco | 1,282.78 mi (2,064.44 km) |
| Unterwellenborn to Soure | 1,212.98 mi (1,952.11 km) |
| Unterwellenborn to Tabua | 1,175.13 mi (1,891.19 km) |
| Unterwellenborn to Tavira | 1,326.39 mi (2,134.61 km) |
| Unterwellenborn to Tomar | 1,226.55 mi (1,973.94 km) |
| Unterwellenborn to Tondela | 1,169.75 mi (1,882.54 km) |
| Unterwellenborn to Torre de Moncorvo | 1,101.25 mi (1,772.29 km) |
| Unterwellenborn to Torres Novas | 1,237.46 mi (1,991.50 km) |
| Unterwellenborn to Torres Vedras | 1,283.89 mi (2,066.22 km) |
