| Northampton to Sierpc | 861.90 mi (1,387.10 km) |
| Northampton to Skarzysko-Kamienna | 934.13 mi (1,503.34 km) |
| Northampton to Skawina | 909.22 mi (1,463.25 km) |
| Northampton to Skierniewice | 890.23 mi (1,432.69 km) |
| Northampton to Skoczow | 868.99 mi (1,398.50 km) |
| Northampton to Skwierzyna | 689.86 mi (1,110.22 km) |
| Northampton to Slawno | 738.23 mi (1,188.07 km) |
| Northampton to Slubice | 652.20 mi (1,049.61 km) |
| Northampton to Slupca | 791.09 mi (1,273.14 km) |
| Northampton to Slupsk | 753.00 mi (1,211.84 km) |
| Northampton to Sochaczew | 890.87 mi (1,433.71 km) |
| Northampton to Sokolka | 1,016.86 mi (1,636.48 km) |
| Northampton to Sokolow Podlaski | 973.43 mi (1,566.59 km) |
| Northampton to Solec Kujawski | 801.40 mi (1,289.73 km) |
| Northampton to Sopot | 814.56 mi (1,310.90 km) |
