| Letchworth to Grigiskes | 1,055.73 mi (1,699.03 km) |
| Letchworth to Ignalina | 1,098.39 mi (1,767.69 km) |
| Letchworth to Jonava | 1,023.54 mi (1,647.23 km) |
| Letchworth to Joniskis | 1,003.29 mi (1,614.64 km) |
| Letchworth to Jurbarkas | 963.76 mi (1,551.02 km) |
| Letchworth to Kaisiadorys | 1,029.90 mi (1,657.47 km) |
| Letchworth to Kalvarija | 980.25 mi (1,577.55 km) |
| Letchworth to Kaunas | 1,007.54 mi (1,621.48 km) |
| Letchworth to Kazlu Ruda | 991.92 mi (1,596.34 km) |
| Letchworth to Kedainiai | 1,011.79 mi (1,628.32 km) |
| Letchworth to Kelme | 973.17 mi (1,566.16 km) |
| Letchworth to Klaipeda | 905.74 mi (1,457.66 km) |
| Letchworth to Kretinga | 910.00 mi (1,464.50 km) |
| Letchworth to Kupiskis | 1,053.14 mi (1,694.87 km) |
| Letchworth to Kursenai | 975.09 mi (1,569.25 km) |
