| Letchworth to Kelkheim (Taunus) | 397.51 mi (639.73 km) |
| Letchworth to Kelsterbach | 402.84 mi (648.31 km) |
| Letchworth to Kemberg | 548.09 mi (882.06 km) |
| Letchworth to Kempen | 287.94 mi (463.39 km) |
| Letchworth to Kempten | 553.03 mi (890.02 km) |
| Letchworth to Kenzingen | 440.24 mi (708.50 km) |
| Letchworth to Kerpen | 307.89 mi (495.50 km) |
| Letchworth to Ketsch | 423.70 mi (681.88 km) |
| Letchworth to Kevelaer | 278.24 mi (447.79 km) |
| Letchworth to Kiel | 458.68 mi (738.17 km) |
| Letchworth to Kierspe | 339.81 mi (546.87 km) |
| Letchworth to Kirchhain | 402.09 mi (647.11 km) |
| Letchworth to Kirchheim bei Munchen | 591.84 mi (952.47 km) |
| Letchworth to Kirchheim unter Teck | 484.62 mi (779.92 km) |
| Letchworth to Kirchhundem | 362.17 mi (582.85 km) |
