| Cascais to Sierpc | 1,691.11 mi (2,721.57 km) |
| Cascais to Skarzysko-Kamienna | 1,696.78 mi (2,730.70 km) |
| Cascais to Skawina | 1,627.39 mi (2,619.04 km) |
| Cascais to Skierniewice | 1,685.73 mi (2,712.93 km) |
| Cascais to Skoczow | 1,579.25 mi (2,541.55 km) |
| Cascais to Skwierzyna | 1,526.26 mi (2,456.27 km) |
| Cascais to Slawno | 1,628.81 mi (2,621.32 km) |
| Cascais to Slubice | 1,483.56 mi (2,387.56 km) |
| Cascais to Slupca | 1,605.66 mi (2,584.07 km) |
| Cascais to Slupsk | 1,644.85 mi (2,647.13 km) |
| Cascais to Sochaczew | 1,695.75 mi (2,729.05 km) |
| Cascais to Sokolka | 1,851.86 mi (2,980.29 km) |
| Cascais to Sokolow Podlaski | 1,779.55 mi (2,863.91 km) |
| Cascais to Solec Kujawski | 1,642.83 mi (2,643.88 km) |
| Cascais to Sopot | 1,698.10 mi (2,732.82 km) |
