| Idrija to Sierpc | 538.31 mi (866.33 km) |
| Idrija to Skarzysko-Kamienna | 472.99 mi (761.21 km) |
| Idrija to Skawina | 384.12 mi (618.18 km) |
| Idrija to Skierniewice | 496.48 mi (799.02 km) |
| Idrija to Skoczow | 342.63 mi (551.42 km) |
| Idrija to Skwierzyna | 460.62 mi (741.29 km) |
| Idrija to Slawno | 588.98 mi (947.88 km) |
| Idrija to Slubice | 439.24 mi (706.89 km) |
| Idrija to Slupca | 468.26 mi (753.59 km) |
| Idrija to Slupsk | 599.47 mi (964.76 km) |
| Idrija to Sochaczew | 513.48 mi (826.37 km) |
| Idrija to Sokolka | 662.50 mi (1,066.19 km) |
| Idrija to Sokolow Podlaski | 576.48 mi (927.75 km) |
| Idrija to Solec Kujawski | 524.08 mi (843.43 km) |
| Idrija to Sopot | 616.87 mi (992.75 km) |
