| Altdorf to Ifield | 496.56 mi (799.14 km) |
| Altdorf to Ilford | 503.30 mi (809.98 km) |
| Altdorf to Ilfracombe | 649.68 mi (1,045.56 km) |
| Altdorf to Ilkeston | 610.13 mi (981.92 km) |
| Altdorf to Ilkley | 669.41 mi (1,077.31 km) |
| Altdorf to Immingham | 607.62 mi (977.87 km) |
| Altdorf to Ince-in-Makerfield | 676.32 mi (1,088.43 km) |
| Altdorf to Inverness | 910.23 mi (1,464.88 km) |
| Altdorf to Inverurie | 855.82 mi (1,377.30 km) |
| Altdorf to Ipswich | 490.91 mi (790.05 km) |
| Altdorf to Irlam | 666.53 mi (1,072.67 km) |
| Altdorf to Irthlingborough | 559.29 mi (900.09 km) |
| Altdorf to Irvine | 831.81 mi (1,338.67 km) |
| Altdorf to Islington | 509.27 mi (819.59 km) |
| Altdorf to Iver | 522.56 mi (840.97 km) |
