| Duffel to Skarzysko-Kamienna | 709.96 mi (1,142.57 km) |
| Duffel to Skawina | 675.72 mi (1,087.46 km) |
| Duffel to Skierniewice | 673.27 mi (1,083.53 km) |
| Duffel to Skoczow | 633.24 mi (1,019.09 km) |
| Duffel to Skwierzyna | 479.58 mi (771.81 km) |
| Duffel to Slawno | 555.37 mi (893.78 km) |
| Duffel to Slubice | 438.33 mi (705.43 km) |
| Duffel to Slupca | 576.81 mi (928.29 km) |
| Duffel to Slupsk | 571.25 mi (919.34 km) |
| Duffel to Sochaczew | 676.70 mi (1,089.04 km) |
| Duffel to Sokolka | 815.99 mi (1,313.21 km) |
| Duffel to Sokolow Podlaski | 761.89 mi (1,226.15 km) |
| Duffel to Solec Kujawski | 597.18 mi (961.06 km) |
| Duffel to Sopot | 629.88 mi (1,013.69 km) |
| Duffel to Sosnowiec | 641.19 mi (1,031.89 km) |
