| Fort Washington to Ickenham | 3,657.01 mi (5,885.39 km) |
| Fort Washington to Ifield | 3,676.30 mi (5,916.44 km) |
| Fort Washington to Ilford | 3,678.82 mi (5,920.49 km) |
| Fort Washington to Ilfracombe | 3,512.67 mi (5,653.09 km) |
| Fort Washington to Ilkeston | 3,593.32 mi (5,782.89 km) |
| Fort Washington to Ilkley | 3,554.96 mi (5,721.16 km) |
| Fort Washington to Immingham | 3,623.84 mi (5,832.00 km) |
| Fort Washington to Ince-in-Makerfield | 3,531.31 mi (5,683.10 km) |
| Fort Washington to Inverness | 3,408.26 mi (5,485.07 km) |
| Fort Washington to Inverurie | 3,478.32 mi (5,597.81 km) |
| Fort Washington to Ipswich | 3,711.12 mi (5,972.48 km) |
| Fort Washington to Irlam | 3,540.06 mi (5,697.18 km) |
| Fort Washington to Irthlingborough | 3,634.20 mi (5,848.67 km) |
| Fort Washington to Irvine | 3,417.30 mi (5,499.62 km) |
| Fort Washington to Islington | 3,671.42 mi (5,908.59 km) |
