| Upper Montclair to Sierpc | 4,187.94 mi (6,739.83 km) |
| Upper Montclair to Skarzysko-Kamienna | 4,296.08 mi (6,913.87 km) |
| Upper Montclair to Skawina | 4,296.45 mi (6,914.46 km) |
| Upper Montclair to Skierniewice | 4,237.50 mi (6,819.61 km) |
| Upper Montclair to Skoczow | 4,263.18 mi (6,860.92 km) |
| Upper Montclair to Skwierzyna | 4,044.54 mi (6,509.06 km) |
| Upper Montclair to Slawno | 4,031.51 mi (6,488.08 km) |
| Upper Montclair to Slubice | 4,017.56 mi (6,465.63 km) |
| Upper Montclair to Slupca | 4,142.10 mi (6,666.06 km) |
| Upper Montclair to Slupsk | 4,040.73 mi (6,502.93 km) |
| Upper Montclair to Sochaczew | 4,231.15 mi (6,809.37 km) |
| Upper Montclair to Sokolka | 4,305.60 mi (6,929.20 km) |
| Upper Montclair to Sokolow Podlaski | 4,298.01 mi (6,916.98 km) |
| Upper Montclair to Solec Kujawski | 4,129.23 mi (6,645.35 km) |
| Upper Montclair to Sopot | 4,095.78 mi (6,591.52 km) |
