| Seal Beach to Sierpc | 5,934.10 mi (9,550.00 km) |
| Seal Beach to Skarzysko-Kamienna | 6,065.19 mi (9,760.97 km) |
| Seal Beach to Skawina | 6,104.25 mi (9,823.83 km) |
| Seal Beach to Skierniewice | 5,998.02 mi (9,652.88 km) |
| Seal Beach to Skoczow | 6,088.48 mi (9,798.46 km) |
| Seal Beach to Skwierzyna | 5,848.38 mi (9,412.05 km) |
| Seal Beach to Slawno | 5,780.12 mi (9,302.20 km) |
| Seal Beach to Slubice | 5,838.12 mi (9,395.54 km) |
| Seal Beach to Slupca | 5,924.12 mi (9,533.94 km) |
| Seal Beach to Slupsk | 5,782.57 mi (9,306.15 km) |
| Seal Beach to Sochaczew | 5,984.65 mi (9,631.36 km) |
| Seal Beach to Sokolka | 5,989.72 mi (9,639.52 km) |
| Seal Beach to Sokolow Podlaski | 6,021.21 mi (9,690.20 km) |
| Seal Beach to Solec Kujawski | 5,888.83 mi (9,477.16 km) |
| Seal Beach to Sopot | 5,819.41 mi (9,365.43 km) |
