| Watertown Town to Sierpc | 4,003.22 mi (6,442.55 km) |
| Watertown Town to Skarzysko-Kamienna | 4,110.55 mi (6,615.30 km) |
| Watertown Town to Skawina | 4,110.11 mi (6,614.58 km) |
| Watertown Town to Skierniewice | 4,052.31 mi (6,521.57 km) |
| Watertown Town to Skoczow | 4,076.57 mi (6,560.60 km) |
| Watertown Town to Skwierzyna | 3,858.79 mi (6,210.12 km) |
| Watertown Town to Slawno | 3,847.14 mi (6,191.38 km) |
| Watertown Town to Slubice | 3,831.50 mi (6,166.20 km) |
| Watertown Town to Slupca | 3,956.62 mi (6,367.57 km) |
| Watertown Town to Slupsk | 3,856.53 mi (6,206.48 km) |
| Watertown Town to Sochaczew | 4,046.14 mi (6,511.63 km) |
| Watertown Town to Sokolka | 4,122.20 mi (6,634.03 km) |
| Watertown Town to Sokolow Podlaski | 4,113.58 mi (6,620.17 km) |
| Watertown Town to Solec Kujawski | 3,944.32 mi (6,347.78 km) |
| Watertown Town to Sopot | 3,911.91 mi (6,295.61 km) |
