| Constanta to Sierpc | 727.53 mi (1,170.85 km) |
| Constanta to Skarzysko-Kamienna | 599.00 mi (963.99 km) |
| Constanta to Skawina | 576.32 mi (927.49 km) |
| Constanta to Skierniewice | 665.28 mi (1,070.66 km) |
| Constanta to Skoczow | 604.83 mi (973.38 km) |
| Constanta to Skwierzyna | 835.87 mi (1,345.20 km) |
| Constanta to Slawno | 884.37 mi (1,423.26 km) |
| Constanta to Slubice | 856.63 mi (1,378.62 km) |
| Constanta to Slupca | 747.64 mi (1,203.20 km) |
| Constanta to Slupsk | 880.50 mi (1,417.03 km) |
| Constanta to Sochaczew | 677.47 mi (1,090.28 km) |
| Constanta to Sokolka | 678.97 mi (1,092.70 km) |
| Constanta to Sokolow Podlaski | 639.52 mi (1,029.21 km) |
| Constanta to Solec Kujawski | 776.26 mi (1,249.26 km) |
| Constanta to Sopot | 841.05 mi (1,353.54 km) |
