| Houston to Sierpc | 5,524.72 mi (8,891.17 km) |
| Houston to Skarzysko-Kamienna | 5,641.30 mi (9,078.80 km) |
| Houston to Skawina | 5,651.76 mi (9,095.64 km) |
| Houston to Skierniewice | 5,579.26 mi (8,978.96 km) |
| Houston to Skoczow | 5,622.31 mi (9,048.24 km) |
| Houston to Skwierzyna | 5,394.24 mi (8,681.19 km) |
| Houston to Slawno | 5,365.68 mi (8,635.23 km) |
| Houston to Slubice | 5,371.16 mi (8,644.04 km) |
| Houston to Slupca | 5,487.82 mi (8,831.80 km) |
| Houston to Slupsk | 5,373.17 mi (8,647.27 km) |
| Houston to Sochaczew | 5,570.85 mi (8,965.42 km) |
| Houston to Sokolka | 5,627.05 mi (9,055.86 km) |
| Houston to Sokolow Podlaski | 5,630.61 mi (9,061.60 km) |
| Houston to Solec Kujawski | 5,468.56 mi (8,800.79 km) |
| Houston to Sopot | 5,424.14 mi (8,729.30 km) |
