| Chelmsford to Sierpc | 812.02 mi (1,306.82 km) |
| Chelmsford to Skarzysko-Kamienna | 878.63 mi (1,414.01 km) |
| Chelmsford to Skawina | 850.12 mi (1,368.14 km) |
| Chelmsford to Skierniewice | 837.15 mi (1,347.27 km) |
| Chelmsford to Skoczow | 808.90 mi (1,301.80 km) |
| Chelmsford to Skwierzyna | 638.23 mi (1,027.12 km) |
| Chelmsford to Slawno | 695.06 mi (1,118.59 km) |
| Chelmsford to Slubice | 599.26 mi (964.42 km) |
| Chelmsford to Slupca | 738.61 mi (1,188.69 km) |
| Chelmsford to Slupsk | 710.25 mi (1,143.04 km) |
| Chelmsford to Sochaczew | 838.72 mi (1,349.80 km) |
| Chelmsford to Sokolka | 969.38 mi (1,560.07 km) |
| Chelmsford to Sokolow Podlaski | 922.36 mi (1,484.40 km) |
| Chelmsford to Solec Kujawski | 752.16 mi (1,210.48 km) |
| Chelmsford to Sopot | 771.30 mi (1,241.29 km) |
