| Oud-Heverlee to Skarzysko-Kamienna | 705.79 mi (1,135.87 km) |
| Oud-Heverlee to Skawina | 669.23 mi (1,077.03 km) |
| Oud-Heverlee to Skierniewice | 670.70 mi (1,079.39 km) |
| Oud-Heverlee to Skoczow | 626.13 mi (1,007.65 km) |
| Oud-Heverlee to Skwierzyna | 479.02 mi (770.91 km) |
| Oud-Heverlee to Slawno | 558.78 mi (899.28 km) |
| Oud-Heverlee to Slubice | 437.30 mi (703.77 km) |
| Oud-Heverlee to Slupca | 575.06 mi (925.47 km) |
| Oud-Heverlee to Slupsk | 574.74 mi (924.95 km) |
| Oud-Heverlee to Sochaczew | 674.67 mi (1,085.77 km) |
| Oud-Heverlee to Sokolka | 815.90 mi (1,313.07 km) |
| Oud-Heverlee to Sokolow Podlaski | 760.14 mi (1,223.32 km) |
| Oud-Heverlee to Solec Kujawski | 597.17 mi (961.05 km) |
| Oud-Heverlee to Sopot | 632.71 mi (1,018.24 km) |
| Oud-Heverlee to Sosnowiec | 635.12 mi (1,022.13 km) |
