| Lisbon to Ifield | 960.22 mi (1,545.32 km) |
| Lisbon to Ilford | 992.50 mi (1,597.27 km) |
| Lisbon to Ilfracombe | 896.29 mi (1,442.44 km) |
| Lisbon to Ilkeston | 1,052.63 mi (1,694.04 km) |
| Lisbon to Ilkley | 1,105.44 mi (1,779.03 km) |
| Lisbon to Immingham | 1,111.89 mi (1,789.41 km) |
| Lisbon to Ince-in-Makerfield | 1,069.47 mi (1,721.15 km) |
| Lisbon to Inverness | 1,314.61 mi (2,115.66 km) |
| Lisbon to Inverurie | 1,318.10 mi (2,121.27 km) |
| Lisbon to Ipswich | 1,045.88 mi (1,683.18 km) |
| Lisbon to Irlam | 1,065.75 mi (1,715.15 km) |
| Lisbon to Irthlingborough | 1,024.73 mi (1,649.15 km) |
| Lisbon to Irvine | 1,185.58 mi (1,908.01 km) |
| Lisbon to Islington | 987.63 mi (1,589.44 km) |
| Lisbon to Iver | 977.76 mi (1,573.56 km) |
