| Slough to Rury | 992.55 mi (1,597.35 km) |
| Slough to Rybnik | 839.15 mi (1,350.49 km) |
| Slough to Ryki | 963.37 mi (1,550.40 km) |
| Slough to Rypin | 850.87 mi (1,369.34 km) |
| Slough to Rzeszow | 988.28 mi (1,590.48 km) |
| Slough to Sandomierz | 967.19 mi (1,556.55 km) |
| Slough to Sanok | 1,006.53 mi (1,619.86 km) |
| Slough to Sedziszow Malopolski | 974.82 mi (1,568.82 km) |
| Slough to Sepolno Krajenskie | 771.95 mi (1,242.34 km) |
| Slough to Sidlice | 820.79 mi (1,320.93 km) |
| Slough to Siechnice | 765.67 mi (1,232.22 km) |
| Slough to Siedlce | 972.95 mi (1,565.81 km) |
| Slough to Siemianowice Slaskie | 854.74 mi (1,375.57 km) |
| Slough to Siemiatycze | 995.88 mi (1,602.71 km) |
| Slough to Sieradz | 828.37 mi (1,333.13 km) |
