| Letchworth to Luban | 668.15 mi (1,075.28 km) |
| Letchworth to Lubartow | 973.78 mi (1,567.14 km) |
| Letchworth to Lubawa | 839.58 mi (1,351.17 km) |
| Letchworth to Lubin | 703.38 mi (1,131.97 km) |
| Letchworth to Lublin | 975.34 mi (1,569.67 km) |
| Letchworth to Lubliniec | 819.04 mi (1,318.12 km) |
| Letchworth to Lubon | 724.16 mi (1,165.42 km) |
| Letchworth to Lubsko | 646.98 mi (1,041.21 km) |
| Letchworth to Lukow | 959.06 mi (1,543.45 km) |
| Letchworth to Lwowek Slaski | 680.69 mi (1,095.47 km) |
| Letchworth to Makow Mazowiecki | 897.53 mi (1,444.43 km) |
| Letchworth to Malbork | 810.74 mi (1,304.76 km) |
| Letchworth to Marki | 901.24 mi (1,450.40 km) |
| Letchworth to Miastko | 727.60 mi (1,170.96 km) |
| Letchworth to Miechow | 882.04 mi (1,419.51 km) |
