| Portimao to Sierpc | 1,736.26 mi (2,794.24 km) |
| Portimao to Skarzysko-Kamienna | 1,733.05 mi (2,789.07 km) |
| Portimao to Skawina | 1,659.68 mi (2,670.99 km) |
| Portimao to Skierniewice | 1,726.50 mi (2,778.53 km) |
| Portimao to Skoczow | 1,611.82 mi (2,593.97 km) |
| Portimao to Skwierzyna | 1,575.87 mi (2,536.13 km) |
| Portimao to Slawno | 1,683.70 mi (2,709.66 km) |
| Portimao to Slubice | 1,533.60 mi (2,468.09 km) |
| Portimao to Slupca | 1,650.64 mi (2,656.44 km) |
| Portimao to Slupsk | 1,699.65 mi (2,735.32 km) |
| Portimao to Sochaczew | 1,737.56 mi (2,796.32 km) |
| Portimao to Sokolka | 1,895.06 mi (3,049.81 km) |
| Portimao to Sokolow Podlaski | 1,819.93 mi (2,928.90 km) |
| Portimao to Solec Kujawski | 1,690.58 mi (2,720.73 km) |
| Portimao to Sopot | 1,750.79 mi (2,817.62 km) |
