| Castleton to Sierpc | 900.93 mi (1,449.90 km) |
| Castleton to Skarzysko-Kamienna | 984.78 mi (1,584.85 km) |
| Castleton to Skawina | 968.70 mi (1,558.98 km) |
| Castleton to Skierniewice | 935.80 mi (1,506.03 km) |
| Castleton to Skoczow | 931.26 mi (1,498.72 km) |
| Castleton to Skwierzyna | 734.55 mi (1,182.14 km) |
| Castleton to Slawno | 765.49 mi (1,231.93 km) |
| Castleton to Slubice | 700.17 mi (1,126.81 km) |
| Castleton to Slupca | 836.30 mi (1,345.90 km) |
| Castleton to Slupsk | 779.24 mi (1,254.07 km) |
| Castleton to Sochaczew | 934.39 mi (1,503.76 km) |
| Castleton to Sokolka | 1,049.60 mi (1,689.18 km) |
| Castleton to Sokolow Podlaski | 1,013.98 mi (1,631.84 km) |
| Castleton to Solec Kujawski | 839.75 mi (1,351.45 km) |
| Castleton to Sopot | 840.92 mi (1,353.33 km) |
