| Letchworth to Kecskemet | 957.25 mi (1,540.55 km) |
| Letchworth to Kerepestarcsa | 918.91 mi (1,478.84 km) |
| Letchworth to Keszthely | 861.89 mi (1,387.08 km) |
| Letchworth to Kiskoros | 950.22 mi (1,529.22 km) |
| Letchworth to Kiskunfelegyhaza | 970.63 mi (1,562.07 km) |
| Letchworth to Kiskunhalas | 965.18 mi (1,553.31 km) |
| Letchworth to Kiskunlachaza | 919.72 mi (1,480.15 km) |
| Letchworth to Kiskunmajsa | 973.27 mi (1,566.33 km) |
| Letchworth to Kisujszallas | 991.98 mi (1,596.44 km) |
| Letchworth to Kisvarda | 1,018.07 mi (1,638.42 km) |
| Letchworth to Komarom | 865.55 mi (1,392.97 km) |
| Letchworth to Komlo | 923.91 mi (1,486.88 km) |
| Letchworth to Kormend | 827.30 mi (1,331.41 km) |
| Letchworth to Koszeg | 812.33 mi (1,307.31 km) |
| Letchworth to Lajosmizse | 947.81 mi (1,525.35 km) |
