| Middlesbrough to Sierpc | 859.09 mi (1,382.57 km) |
| Middlesbrough to Skarzysko-Kamienna | 950.40 mi (1,529.52 km) |
| Middlesbrough to Skawina | 941.15 mi (1,514.63 km) |
| Middlesbrough to Skierniewice | 898.13 mi (1,445.40 km) |
| Middlesbrough to Skoczow | 906.22 mi (1,458.43 km) |
| Middlesbrough to Skwierzyna | 698.05 mi (1,123.41 km) |
| Middlesbrough to Slawno | 717.40 mi (1,154.54 km) |
| Middlesbrough to Slubice | 666.41 mi (1,072.48 km) |
| Middlesbrough to Slupca | 799.15 mi (1,286.11 km) |
| Middlesbrough to Slupsk | 730.43 mi (1,175.51 km) |
| Middlesbrough to Sochaczew | 895.32 mi (1,440.88 km) |
| Middlesbrough to Sokolka | 1,002.89 mi (1,614.00 km) |
| Middlesbrough to Sokolow Podlaski | 972.42 mi (1,564.95 km) |
| Middlesbrough to Solec Kujawski | 797.95 mi (1,284.17 km) |
| Middlesbrough to Sopot | 791.68 mi (1,274.08 km) |
