| Washougal to Sierpc | 5,272.40 mi (8,485.10 km) |
| Washougal to Skarzysko-Kamienna | 5,405.43 mi (8,699.19 km) |
| Washougal to Skawina | 5,455.46 mi (8,779.72 km) |
| Washougal to Skierniewice | 5,338.23 mi (8,591.04 km) |
| Washougal to Skoczow | 5,446.20 mi (8,764.82 km) |
| Washougal to Skwierzyna | 5,208.76 mi (8,382.69 km) |
| Washougal to Slawno | 5,125.52 mi (8,248.72 km) |
| Washougal to Slubice | 5,204.58 mi (8,375.96 km) |
| Washougal to Slupca | 5,274.18 mi (8,487.97 km) |
| Washougal to Slupsk | 5,125.75 mi (8,249.10 km) |
| Washougal to Sochaczew | 5,323.20 mi (8,566.86 km) |
| Washougal to Sokolka | 5,307.36 mi (8,541.38 km) |
| Washougal to Sokolow Podlaski | 5,349.06 mi (8,608.48 km) |
| Washougal to Solec Kujawski | 5,233.17 mi (8,421.98 km) |
| Washougal to Sopot | 5,155.47 mi (8,296.93 km) |
