| Middlesex to Sierpc | 4,212.24 mi (6,778.95 km) |
| Middlesex to Skarzysko-Kamienna | 4,320.35 mi (6,952.93 km) |
| Middlesex to Skawina | 4,320.66 mi (6,953.42 km) |
| Middlesex to Skierniewice | 4,261.79 mi (6,858.69 km) |
| Middlesex to Skoczow | 4,287.36 mi (6,899.84 km) |
| Middlesex to Skwierzyna | 4,068.80 mi (6,548.10 km) |
| Middlesex to Slawno | 4,055.83 mi (6,527.22 km) |
| Middlesex to Slubice | 4,041.79 mi (6,504.63 km) |
| Middlesex to Slupca | 4,166.37 mi (6,705.12 km) |
| Middlesex to Slupsk | 4,065.06 mi (6,542.08 km) |
| Middlesex to Sochaczew | 4,255.44 mi (6,848.48 km) |
| Middlesex to Sokolka | 4,329.94 mi (6,968.37 km) |
| Middlesex to Sokolow Podlaski | 4,322.33 mi (6,956.12 km) |
| Middlesex to Solec Kujawski | 4,153.53 mi (6,684.46 km) |
| Middlesex to Sopot | 4,120.11 mi (6,630.68 km) |
