| Silver Spring to Sierpc | 4,382.79 mi (7,053.41 km) |
| Silver Spring to Skarzysko-Kamienna | 4,491.38 mi (7,228.19 km) |
| Silver Spring to Skawina | 4,492.17 mi (7,229.45 km) |
| Silver Spring to Skierniewice | 4,432.63 mi (7,133.63 km) |
| Silver Spring to Skoczow | 4,459.03 mi (7,176.11 km) |
| Silver Spring to Skwierzyna | 4,239.98 mi (6,823.59 km) |
| Silver Spring to Slawno | 4,226.15 mi (6,801.33 km) |
| Silver Spring to Slubice | 4,213.15 mi (6,780.42 km) |
| Silver Spring to Slupca | 4,337.38 mi (6,980.34 km) |
| Silver Spring to Slupsk | 4,235.28 mi (6,816.03 km) |
| Silver Spring to Sochaczew | 4,426.17 mi (7,123.23 km) |
| Silver Spring to Sokolka | 4,499.62 mi (7,241.44 km) |
| Silver Spring to Sokolow Podlaski | 4,492.68 mi (7,230.27 km) |
| Silver Spring to Solec Kujawski | 4,324.19 mi (6,959.12 km) |
| Silver Spring to Sopot | 4,290.11 mi (6,904.27 km) |
