| Letchworth to Rury | 973.38 mi (1,566.50 km) |
| Letchworth to Rybnik | 824.09 mi (1,326.24 km) |
| Letchworth to Ryki | 943.50 mi (1,518.42 km) |
| Letchworth to Rypin | 828.12 mi (1,332.74 km) |
| Letchworth to Rzeszow | 971.88 mi (1,564.09 km) |
| Letchworth to Sandomierz | 949.45 mi (1,527.99 km) |
| Letchworth to Sanok | 991.09 mi (1,595.01 km) |
| Letchworth to Sedziszow Malopolski | 958.46 mi (1,542.49 km) |
| Letchworth to Sepolno Krajenskie | 748.30 mi (1,204.27 km) |
| Letchworth to Sidlice | 795.15 mi (1,279.67 km) |
| Letchworth to Siechnice | 748.55 mi (1,204.67 km) |
| Letchworth to Siedlce | 951.88 mi (1,531.91 km) |
| Letchworth to Siemianowice Slaskie | 838.99 mi (1,350.22 km) |
| Letchworth to Siemiatycze | 974.19 mi (1,567.80 km) |
| Letchworth to Sieradz | 809.29 mi (1,302.42 km) |
