| Round Lake Beach to Sierpc | 4,582.40 mi (7,374.65 km) |
| Round Lake Beach to Skarzysko-Kamienna | 4,702.08 mi (7,567.26 km) |
| Round Lake Beach to Skawina | 4,717.54 mi (7,592.14 km) |
| Round Lake Beach to Skierniewice | 4,638.77 mi (7,465.38 km) |
| Round Lake Beach to Skoczow | 4,690.40 mi (7,548.47 km) |
| Round Lake Beach to Skwierzyna | 4,458.30 mi (7,174.94 km) |
| Round Lake Beach to Slawno | 4,423.02 mi (7,118.16 km) |
| Round Lake Beach to Slubice | 4,437.37 mi (7,141.26 km) |
| Round Lake Beach to Slupca | 4,549.52 mi (7,321.74 km) |
| Round Lake Beach to Slupsk | 4,429.81 mi (7,129.08 km) |
| Round Lake Beach to Sochaczew | 4,629.53 mi (7,450.50 km) |
| Round Lake Beach to Sokolka | 4,679.03 mi (7,530.17 km) |
| Round Lake Beach to Sokolow Podlaski | 4,686.28 mi (7,541.84 km) |
| Round Lake Beach to Solec Kujawski | 4,527.51 mi (7,286.33 km) |
| Round Lake Beach to Sopot | 4,479.10 mi (7,208.42 km) |
