| North Potomac to Sierpc | 4,385.82 mi (7,058.29 km) |
| North Potomac to Skarzysko-Kamienna | 4,494.69 mi (7,233.51 km) |
| North Potomac to Skawina | 4,495.80 mi (7,235.30 km) |
| North Potomac to Skierniewice | 4,435.82 mi (7,138.76 km) |
| North Potomac to Skoczow | 4,462.79 mi (7,182.16 km) |
| North Potomac to Skwierzyna | 4,243.38 mi (6,829.07 km) |
| North Potomac to Slawno | 4,229.07 mi (6,806.03 km) |
| North Potomac to Slubice | 4,216.68 mi (6,786.09 km) |
| North Potomac to Slupca | 4,340.68 mi (6,985.64 km) |
| North Potomac to Slupsk | 4,238.15 mi (6,820.65 km) |
| North Potomac to Sochaczew | 4,429.29 mi (7,128.26 km) |
| North Potomac to Sokolka | 4,502.23 mi (7,245.65 km) |
| North Potomac to Sokolow Podlaski | 4,495.61 mi (7,234.98 km) |
| North Potomac to Solec Kujawski | 4,327.29 mi (6,964.10 km) |
| North Potomac to Sopot | 4,292.88 mi (6,908.72 km) |
