| Houthulst to Skarzysko-Kamienna | 778.52 mi (1,252.90 km) |
| Houthulst to Skawina | 743.81 mi (1,197.04 km) |
| Houthulst to Skierniewice | 741.61 mi (1,193.51 km) |
| Houthulst to Skoczow | 701.03 mi (1,128.19 km) |
| Houthulst to Skwierzyna | 547.17 mi (880.58 km) |
| Houthulst to Slawno | 619.38 mi (996.80 km) |
| Houthulst to Slubice | 506.18 mi (814.62 km) |
| Houthulst to Slupca | 644.91 mi (1,037.88 km) |
| Houthulst to Slupsk | 635.15 mi (1,022.18 km) |
| Houthulst to Sochaczew | 744.88 mi (1,198.76 km) |
| Houthulst to Sokolka | 883.12 mi (1,421.24 km) |
| Houthulst to Sokolow Podlaski | 829.94 mi (1,335.67 km) |
| Houthulst to Solec Kujawski | 664.35 mi (1,069.17 km) |
| Houthulst to Sopot | 694.47 mi (1,117.64 km) |
| Houthulst to Sosnowiec | 709.43 mi (1,141.72 km) |
