| Unterwellenborn to Sestao | 846.96 mi (1,363.05 km) |
| Unterwellenborn to Sevilla | 1,263.19 mi (2,032.90 km) |
| Unterwellenborn to Sevilla La Nueva | 1,029.97 mi (1,657.57 km) |
| Unterwellenborn to Silla | 969.26 mi (1,559.87 km) |
| Unterwellenborn to Silleda | 1,077.78 mi (1,734.51 km) |
| Unterwellenborn to Sitges | 797.58 mi (1,283.58 km) |
| Unterwellenborn to Socuellamos | 1,045.56 mi (1,682.67 km) |
| Unterwellenborn to Soller | 863.14 mi (1,389.09 km) |
| Unterwellenborn to Solsona | 761.87 mi (1,226.11 km) |
| Unterwellenborn to Son Servera | 857.14 mi (1,379.44 km) |
| Unterwellenborn to Sonseca | 1,061.42 mi (1,708.20 km) |
| Unterwellenborn to Sopelana | 842.72 mi (1,356.23 km) |
| Unterwellenborn to Soria | 902.63 mi (1,452.64 km) |
| Unterwellenborn to Suances | 881.09 mi (1,417.98 km) |
| Unterwellenborn to Sueca | 975.74 mi (1,570.30 km) |
