| Chepstow to Sierpc | 944.82 mi (1,520.53 km) |
| Chepstow to Skarzysko-Kamienna | 1,013.62 mi (1,631.26 km) |
| Chepstow to Skawina | 985.33 mi (1,585.74 km) |
| Chepstow to Skierniewice | 971.42 mi (1,563.35 km) |
| Chepstow to Skoczow | 943.95 mi (1,519.13 km) |
| Chepstow to Skwierzyna | 771.81 mi (1,242.11 km) |
| Chepstow to Slawno | 823.35 mi (1,325.06 km) |
| Chepstow to Slubice | 733.38 mi (1,180.26 km) |
| Chepstow to Slupca | 872.61 mi (1,404.33 km) |
| Chepstow to Slupsk | 838.22 mi (1,348.99 km) |
| Chepstow to Sochaczew | 972.62 mi (1,565.27 km) |
| Chepstow to Sokolka | 1,100.82 mi (1,771.61 km) |
| Chepstow to Sokolow Podlaski | 1,055.80 mi (1,699.14 km) |
| Chepstow to Solec Kujawski | 884.58 mi (1,423.59 km) |
| Chepstow to Sopot | 899.69 mi (1,447.91 km) |
