| Castano Primo to Skarzysko-Kamienna | 676.44 mi (1,088.62 km) |
| Castano Primo to Skawina | 597.42 mi (961.45 km) |
| Castano Primo to Skierniewice | 680.82 mi (1,095.68 km) |
| Castano Primo to Skoczow | 550.33 mi (885.67 km) |
| Castano Primo to Skwierzyna | 574.02 mi (923.80 km) |
| Castano Primo to Slawno | 701.85 mi (1,129.51 km) |
| Castano Primo to Slubice | 538.12 mi (866.01 km) |
| Castano Primo to Slupca | 622.09 mi (1,001.16 km) |
| Castano Primo to Slupsk | 715.91 mi (1,152.15 km) |
| Castano Primo to Sochaczew | 694.65 mi (1,117.93 km) |
| Castano Primo to Sokolka | 852.53 mi (1,372.02 km) |
| Castano Primo to Sokolow Podlaski | 771.19 mi (1,241.11 km) |
| Castano Primo to Solec Kujawski | 671.68 mi (1,080.97 km) |
| Castano Primo to Sopot | 751.86 mi (1,210.01 km) |
| Castano Primo to Sosnowiec | 580.03 mi (933.48 km) |
