| Aberystwyth to Sesimbra | 994.84 mi (1,601.04 km) |
| Aberystwyth to Setubal | 987.04 mi (1,588.48 km) |
| Aberystwyth to Sever do Vouga | 831.95 mi (1,338.89 km) |
| Aberystwyth to Silves | 1,073.06 mi (1,726.93 km) |
| Aberystwyth to Sines | 1,025.26 mi (1,650.00 km) |
| Aberystwyth to Sintra | 974.37 mi (1,568.10 km) |
| Aberystwyth to Sobrado de Paiva | 810.58 mi (1,304.51 km) |
| Aberystwyth to Sobral de Monte Agraco | 956.75 mi (1,539.75 km) |
| Aberystwyth to Soure | 881.09 mi (1,417.97 km) |
| Aberystwyth to Tabua | 853.49 mi (1,373.56 km) |
| Aberystwyth to Tavira | 1,071.00 mi (1,723.61 km) |
| Aberystwyth to Tomar | 909.06 mi (1,462.99 km) |
| Aberystwyth to Tondela | 843.46 mi (1,357.42 km) |
| Aberystwyth to Torre de Moncorvo | 787.96 mi (1,268.09 km) |
| Aberystwyth to Torres Novas | 919.34 mi (1,479.54 km) |
