| Aberystwyth to Sierpc | 991.47 mi (1,595.61 km) |
| Aberystwyth to Skarzysko-Kamienna | 1,067.30 mi (1,717.65 km) |
| Aberystwyth to Skawina | 1,043.95 mi (1,680.07 km) |
| Aberystwyth to Skierniewice | 1,022.00 mi (1,644.76 km) |
| Aberystwyth to Skoczow | 1,003.98 mi (1,615.74 km) |
| Aberystwyth to Skwierzyna | 821.04 mi (1,321.33 km) |
| Aberystwyth to Slawno | 862.56 mi (1,388.16 km) |
| Aberystwyth to Slubice | 784.28 mi (1,262.17 km) |
| Aberystwyth to Slupca | 922.62 mi (1,484.81 km) |
| Aberystwyth to Slupsk | 876.88 mi (1,411.19 km) |
| Aberystwyth to Sochaczew | 1,022.01 mi (1,644.77 km) |
| Aberystwyth to Sokolka | 1,144.16 mi (1,841.35 km) |
| Aberystwyth to Sokolow Podlaski | 1,103.69 mi (1,776.22 km) |
| Aberystwyth to Solec Kujawski | 930.62 mi (1,497.68 km) |
| Aberystwyth to Sopot | 938.63 mi (1,510.57 km) |
