| Milford Haven to Sesena | 804.78 mi (1,295.16 km) |
| Milford Haven to Sestao | 588.29 mi (946.76 km) |
| Milford Haven to Sevilla | 1,001.14 mi (1,611.18 km) |
| Milford Haven to Sevilla La Nueva | 786.85 mi (1,266.31 km) |
| Milford Haven to Silla | 881.96 mi (1,419.37 km) |
| Milford Haven to Silleda | 640.41 mi (1,030.64 km) |
| Milford Haven to Sitges | 793.19 mi (1,276.51 km) |
| Milford Haven to Socuellamos | 864.97 mi (1,392.03 km) |
| Milford Haven to Soller | 904.78 mi (1,456.10 km) |
| Milford Haven to Solsona | 738.93 mi (1,189.20 km) |
| Milford Haven to Son Servera | 927.41 mi (1,492.53 km) |
| Milford Haven to Sonseca | 831.75 mi (1,338.57 km) |
| Milford Haven to Sopelana | 583.66 mi (939.32 km) |
| Milford Haven to Soria | 697.93 mi (1,123.20 km) |
| Milford Haven to Suances | 574.01 mi (923.78 km) |
