| Mountain Top to Ickenham | 3,505.83 mi (5,642.09 km) |
| Mountain Top to Ifield | 3,525.85 mi (5,674.30 km) |
| Mountain Top to Ilford | 3,527.42 mi (5,676.84 km) |
| Mountain Top to Ilfracombe | 3,363.62 mi (5,413.23 km) |
| Mountain Top to Ilkeston | 3,439.82 mi (5,535.86 km) |
| Mountain Top to Ilkley | 3,399.89 mi (5,471.59 km) |
| Mountain Top to Immingham | 3,468.81 mi (5,582.51 km) |
| Mountain Top to Ince-in-Makerfield | 3,377.19 mi (5,435.06 km) |
| Mountain Top to Inverness | 3,247.62 mi (5,226.53 km) |
| Mountain Top to Inverurie | 3,317.64 mi (5,339.22 km) |
| Mountain Top to Ipswich | 3,558.38 mi (5,726.66 km) |
| Mountain Top to Irlam | 3,386.06 mi (5,449.33 km) |
| Mountain Top to Irthlingborough | 3,481.65 mi (5,603.17 km) |
| Mountain Top to Irvine | 3,259.93 mi (5,246.36 km) |
| Mountain Top to Islington | 3,520.13 mi (5,665.10 km) |
