| Castalla to Sierpc | 1,382.09 mi (2,224.26 km) |
| Castalla to Skarzysko-Kamienna | 1,357.18 mi (2,184.17 km) |
| Castalla to Skawina | 1,276.28 mi (2,053.98 km) |
| Castalla to Skierniewice | 1,361.36 mi (2,190.90 km) |
| Castalla to Skoczow | 1,229.89 mi (1,979.32 km) |
| Castalla to Skwierzyna | 1,237.98 mi (1,992.33 km) |
| Castalla to Slawno | 1,358.57 mi (2,186.41 km) |
| Castalla to Slubice | 1,198.18 mi (1,928.29 km) |
| Castalla to Slupca | 1,297.87 mi (2,088.71 km) |
| Castalla to Slupsk | 1,373.81 mi (2,210.94 km) |
| Castalla to Sochaczew | 1,374.77 mi (2,212.47 km) |
| Castalla to Sokolka | 1,532.98 mi (2,467.10 km) |
| Castalla to Sokolow Podlaski | 1,452.19 mi (2,337.07 km) |
| Castalla to Solec Kujawski | 1,344.42 mi (2,163.64 km) |
| Castalla to Sopot | 1,417.33 mi (2,280.98 km) |
