| Irthlingborough to Haram | 756.93 mi (1,218.17 km) |
| Irthlingborough to Harstad | 1,268.54 mi (2,041.52 km) |
| Irthlingborough to Haugesund | 542.33 mi (872.80 km) |
| Irthlingborough to Helleland | 516.51 mi (831.24 km) |
| Irthlingborough to Heum | 625.39 mi (1,006.46 km) |
| Irthlingborough to Honefoss | 683.16 mi (1,099.44 km) |
| Irthlingborough to Horten | 649.35 mi (1,045.02 km) |
| Irthlingborough to Kaldsletta | 1,352.24 mi (2,176.21 km) |
| Irthlingborough to Kirkenes | 1,546.91 mi (2,489.51 km) |
| Irthlingborough to Kleppe | 507.18 mi (816.22 km) |
| Irthlingborough to Kongsberg | 642.64 mi (1,034.24 km) |
| Irthlingborough to Kongsvinger | 725.40 mi (1,167.41 km) |
| Irthlingborough to Kopervik | 532.21 mi (856.52 km) |
| Irthlingborough to Kosvik | 527.36 mi (848.71 km) |
| Irthlingborough to Kragero | 596.06 mi (959.26 km) |
