| South Houston to Sierpc | 5,526.56 mi (8,894.14 km) |
| South Houston to Skarzysko-Kamienna | 5,642.93 mi (9,081.42 km) |
| South Houston to Skawina | 5,653.10 mi (9,097.78 km) |
| South Houston to Skierniewice | 5,580.98 mi (8,981.72 km) |
| South Houston to Skoczow | 5,623.52 mi (9,050.18 km) |
| South Houston to Skwierzyna | 5,395.70 mi (8,683.54 km) |
| South Houston to Slawno | 5,367.56 mi (8,638.26 km) |
| South Houston to Slubice | 5,372.49 mi (8,646.20 km) |
| South Houston to Slupca | 5,489.41 mi (8,834.36 km) |
| South Houston to Slupsk | 5,375.09 mi (8,650.37 km) |
| South Houston to Sochaczew | 5,572.62 mi (8,968.27 km) |
| South Houston to Sokolka | 5,629.30 mi (9,059.49 km) |
| South Houston to Sokolow Podlaski | 5,632.59 mi (9,064.78 km) |
| South Houston to Solec Kujawski | 5,470.32 mi (8,803.63 km) |
| South Houston to Sopot | 5,426.18 mi (8,732.59 km) |
