| Letchworth to Haram | 775.44 mi (1,247.95 km) |
| Letchworth to Harstad | 1,285.67 mi (2,069.08 km) |
| Letchworth to Haugesund | 558.63 mi (899.02 km) |
| Letchworth to Helleland | 531.37 mi (855.15 km) |
| Letchworth to Heum | 635.01 mi (1,021.95 km) |
| Letchworth to Honefoss | 694.66 mi (1,117.95 km) |
| Letchworth to Horten | 659.30 mi (1,061.04 km) |
| Letchworth to Kaldsletta | 1,369.17 mi (2,203.47 km) |
| Letchworth to Kirkenes | 1,560.66 mi (2,511.65 km) |
| Letchworth to Kleppe | 522.05 mi (840.15 km) |
| Letchworth to Kongsberg | 653.91 mi (1,052.37 km) |
| Letchworth to Kongsvinger | 735.33 mi (1,183.40 km) |
| Letchworth to Kopervik | 548.28 mi (882.37 km) |
| Letchworth to Kosvik | 537.35 mi (864.79 km) |
| Letchworth to Kragero | 606.09 mi (975.41 km) |
