| Grass Valley to Sierpc | 5,652.77 mi (9,097.26 km) |
| Grass Valley to Skarzysko-Kamienna | 5,785.26 mi (9,310.47 km) |
| Grass Valley to Skawina | 5,830.62 mi (9,383.47 km) |
| Grass Valley to Skierniewice | 5,717.92 mi (9,202.10 km) |
| Grass Valley to Skoczow | 5,818.47 mi (9,363.92 km) |
| Grass Valley to Skwierzyna | 5,579.26 mi (8,978.95 km) |
| Grass Valley to Slawno | 5,502.44 mi (8,855.32 km) |
| Grass Valley to Slubice | 5,572.36 mi (8,967.85 km) |
| Grass Valley to Slupca | 5,649.40 mi (9,091.84 km) |
| Grass Valley to Slupsk | 5,503.65 mi (8,857.27 km) |
| Grass Valley to Sochaczew | 5,703.58 mi (9,179.03 km) |
| Grass Valley to Sokolka | 5,696.74 mi (9,168.02 km) |
| Grass Valley to Sokolow Podlaski | 5,734.14 mi (9,228.21 km) |
| Grass Valley to Solec Kujawski | 5,610.82 mi (9,029.73 km) |
| Grass Valley to Sopot | 5,536.56 mi (8,910.23 km) |
