| Western Springs to Sierpc | 4,607.64 mi (7,415.28 km) |
| Western Springs to Skarzysko-Kamienna | 4,726.80 mi (7,607.04 km) |
| Western Springs to Skawina | 4,741.45 mi (7,630.63 km) |
| Western Springs to Skierniewice | 4,663.70 mi (7,505.50 km) |
| Western Springs to Skoczow | 4,713.95 mi (7,586.37 km) |
| Western Springs to Skwierzyna | 4,482.43 mi (7,213.77 km) |
| Western Springs to Slawno | 4,448.30 mi (7,158.85 km) |
| Western Springs to Slubice | 4,461.15 mi (7,179.53 km) |
| Western Springs to Slupca | 4,574.05 mi (7,361.23 km) |
| Western Springs to Slupsk | 4,455.22 mi (7,169.98 km) |
| Western Springs to Sochaczew | 4,654.60 mi (7,490.85 km) |
| Western Springs to Sokolka | 4,705.41 mi (7,572.62 km) |
| Western Springs to Sokolow Podlaski | 4,711.92 mi (7,583.10 km) |
| Western Springs to Solec Kujawski | 4,552.52 mi (7,326.57 km) |
| Western Springs to Sopot | 4,504.84 mi (7,249.84 km) |
