| Aberystwyth to Sesena | 850.76 mi (1,369.17 km) |
| Aberystwyth to Sestao | 630.92 mi (1,015.37 km) |
| Aberystwyth to Sevilla | 1,052.49 mi (1,693.82 km) |
| Aberystwyth to Sevilla La Nueva | 833.72 mi (1,341.74 km) |
| Aberystwyth to Silla | 918.62 mi (1,478.38 km) |
| Aberystwyth to Silleda | 698.24 mi (1,123.71 km) |
| Aberystwyth to Sitges | 820.37 mi (1,320.25 km) |
| Aberystwyth to Socuellamos | 908.63 mi (1,462.29 km) |
| Aberystwyth to Soller | 931.29 mi (1,498.76 km) |
| Aberystwyth to Solsona | 765.82 mi (1,232.46 km) |
| Aberystwyth to Son Servera | 952.08 mi (1,532.22 km) |
| Aberystwyth to Sonseca | 878.47 mi (1,413.77 km) |
| Aberystwyth to Sopelana | 626.16 mi (1,007.70 km) |
| Aberystwyth to Soria | 739.52 mi (1,190.14 km) |
| Aberystwyth to Suances | 620.51 mi (998.61 km) |
