| Leavenworth to Ickenham | 4,331.44 mi (6,970.77 km) |
| Leavenworth to Ifield | 4,355.44 mi (7,009.41 km) |
| Leavenworth to Ilford | 4,351.34 mi (7,002.80 km) |
| Leavenworth to Ilfracombe | 4,204.21 mi (6,766.02 km) |
| Leavenworth to Ilkeston | 4,252.06 mi (6,843.03 km) |
| Leavenworth to Ilkley | 4,202.33 mi (6,762.99 km) |
| Leavenworth to Immingham | 4,270.16 mi (6,872.16 km) |
| Leavenworth to Ince-in-Makerfield | 4,186.52 mi (6,737.55 km) |
| Leavenworth to Inverness | 4,010.52 mi (6,454.31 km) |
| Leavenworth to Inverurie | 4,078.58 mi (6,563.84 km) |
| Leavenworth to Ipswich | 4,373.27 mi (7,038.09 km) |
| Leavenworth to Irlam | 4,196.01 mi (6,752.82 km) |
| Leavenworth to Irthlingborough | 4,299.20 mi (6,918.89 km) |
| Leavenworth to Irvine | 4,048.91 mi (6,516.09 km) |
| Leavenworth to Islington | 4,344.79 mi (6,992.27 km) |
