| Barreiro to Sierpc | 1,679.40 mi (2,702.74 km) |
| Barreiro to Skarzysko-Kamienna | 1,683.90 mi (2,709.97 km) |
| Barreiro to Skawina | 1,614.00 mi (2,597.48 km) |
| Barreiro to Skierniewice | 1,673.43 mi (2,693.12 km) |
| Barreiro to Skoczow | 1,565.87 mi (2,520.03 km) |
| Barreiro to Skwierzyna | 1,515.14 mi (2,438.38 km) |
| Barreiro to Slawno | 1,618.53 mi (2,604.77 km) |
| Barreiro to Slubice | 1,472.50 mi (2,369.75 km) |
| Barreiro to Slupca | 1,593.91 mi (2,565.15 km) |
| Barreiro to Slupsk | 1,634.55 mi (2,630.56 km) |
| Barreiro to Sochaczew | 1,683.59 mi (2,709.48 km) |
| Barreiro to Sokolka | 1,839.93 mi (2,961.08 km) |
| Barreiro to Sokolow Podlaski | 1,767.22 mi (2,844.07 km) |
| Barreiro to Solec Kujawski | 1,631.48 mi (2,625.61 km) |
| Barreiro to Sopot | 1,687.49 mi (2,715.75 km) |
