| Castelnau-le-Lez to Ifield | 551.61 mi (887.74 km) |
| Castelnau-le-Lez to Ilford | 575.21 mi (925.71 km) |
| Castelnau-le-Lez to Ilfracombe | 642.82 mi (1,034.52 km) |
| Castelnau-le-Lez to Ilkeston | 687.50 mi (1,106.42 km) |
| Castelnau-le-Lez to Ilkley | 756.49 mi (1,217.45 km) |
| Castelnau-le-Lez to Immingham | 714.25 mi (1,149.48 km) |
| Castelnau-le-Lez to Ince-in-Makerfield | 745.22 mi (1,199.31 km) |
| Castelnau-le-Lez to Inverness | 1,018.96 mi (1,639.86 km) |
| Castelnau-le-Lez to Inverurie | 981.29 mi (1,579.24 km) |
| Castelnau-le-Lez to Ipswich | 595.59 mi (958.51 km) |
| Castelnau-le-Lez to Irlam | 736.13 mi (1,184.69 km) |
| Castelnau-le-Lez to Irthlingborough | 635.20 mi (1,022.26 km) |
| Castelnau-le-Lez to Irvine | 910.75 mi (1,465.71 km) |
| Castelnau-le-Lez to Islington | 577.09 mi (928.74 km) |
| Castelnau-le-Lez to Iver | 581.94 mi (936.54 km) |
