| Sidcup to Sierpc | 832.80 mi (1,340.26 km) |
| Sidcup to Skarzysko-Kamienna | 896.96 mi (1,443.52 km) |
| Sidcup to Skawina | 866.45 mi (1,394.41 km) |
| Sidcup to Skierniewice | 856.64 mi (1,378.64 km) |
| Sidcup to Skoczow | 824.61 mi (1,327.08 km) |
| Sidcup to Skwierzyna | 658.51 mi (1,059.77 km) |
| Sidcup to Slawno | 718.00 mi (1,155.50 km) |
| Sidcup to Slubice | 619.06 mi (996.29 km) |
| Sidcup to Slupca | 758.45 mi (1,220.60 km) |
| Sidcup to Slupsk | 733.28 mi (1,180.10 km) |
| Sidcup to Sochaczew | 858.61 mi (1,381.80 km) |
| Sidcup to Sokolka | 990.89 mi (1,594.68 km) |
| Sidcup to Sokolow Podlaski | 942.62 mi (1,517.01 km) |
| Sidcup to Solec Kujawski | 773.21 mi (1,244.36 km) |
| Sidcup to Sopot | 794.16 mi (1,278.08 km) |
