| Cartaxo to Ifield | 925.41 mi (1,489.30 km) |
| Cartaxo to Ilford | 957.71 mi (1,541.29 km) |
| Cartaxo to Ilfracombe | 863.07 mi (1,388.98 km) |
| Cartaxo to Ilkeston | 1,018.62 mi (1,639.31 km) |
| Cartaxo to Ilkley | 1,071.86 mi (1,725.00 km) |
| Cartaxo to Immingham | 1,077.68 mi (1,734.36 km) |
| Cartaxo to Ince-in-Makerfield | 1,036.12 mi (1,667.48 km) |
| Cartaxo to Inverness | 1,282.83 mi (2,064.51 km) |
| Cartaxo to Inverurie | 1,285.51 mi (2,068.84 km) |
| Cartaxo to Ipswich | 1,010.96 mi (1,626.99 km) |
| Cartaxo to Irlam | 1,032.30 mi (1,661.32 km) |
| Cartaxo to Irthlingborough | 990.32 mi (1,593.77 km) |
| Cartaxo to Irvine | 1,153.68 mi (1,856.68 km) |
| Cartaxo to Islington | 952.89 mi (1,533.53 km) |
| Cartaxo to Iver | 943.12 mi (1,517.81 km) |
