| Morriston to Sierpc | 996.99 mi (1,604.50 km) |
| Morriston to Skarzysko-Kamienna | 1,067.13 mi (1,717.38 km) |
| Morriston to Skawina | 1,039.38 mi (1,672.73 km) |
| Morriston to Skierniewice | 1,024.41 mi (1,648.62 km) |
| Morriston to Skoczow | 998.08 mi (1,606.26 km) |
| Morriston to Skwierzyna | 824.46 mi (1,326.83 km) |
| Morriston to Slawno | 873.53 mi (1,405.81 km) |
| Morriston to Slubice | 786.33 mi (1,265.48 km) |
| Morriston to Slupca | 925.46 mi (1,489.38 km) |
| Morriston to Slupsk | 888.24 mi (1,429.49 km) |
| Morriston to Sochaczew | 1,025.38 mi (1,650.19 km) |
| Morriston to Sokolka | 1,152.26 mi (1,854.39 km) |
| Morriston to Sokolow Podlaski | 1,108.28 mi (1,783.60 km) |
| Morriston to Solec Kujawski | 936.58 mi (1,507.29 km) |
| Morriston to Sopot | 949.84 mi (1,528.61 km) |
