| Hillsborough to Sierpc | 4,221.09 mi (6,793.19 km) |
| Hillsborough to Skarzysko-Kamienna | 4,329.25 mi (6,967.25 km) |
| Hillsborough to Skawina | 4,329.62 mi (6,967.84 km) |
| Hillsborough to Skierniewice | 4,270.67 mi (6,872.98 km) |
| Hillsborough to Skoczow | 4,296.34 mi (6,914.30 km) |
| Hillsborough to Skwierzyna | 4,077.71 mi (6,562.45 km) |
| Hillsborough to Slawno | 4,064.65 mi (6,541.42 km) |
| Hillsborough to Slubice | 4,050.73 mi (6,519.02 km) |
| Hillsborough to Slupca | 4,175.27 mi (6,719.44 km) |
| Hillsborough to Slupsk | 4,073.87 mi (6,556.26 km) |
| Hillsborough to Sochaczew | 4,264.31 mi (6,862.74 km) |
| Hillsborough to Sokolka | 4,338.70 mi (6,982.47 km) |
| Hillsborough to Sokolow Podlaski | 4,331.16 mi (6,970.32 km) |
| Hillsborough to Solec Kujawski | 4,162.39 mi (6,698.72 km) |
| Hillsborough to Sopot | 4,128.90 mi (6,644.83 km) |
