| Box Elder to Ickenham | 4,381.43 mi (7,051.22 km) |
| Box Elder to Ifield | 4,408.29 mi (7,094.45 km) |
| Box Elder to Ilford | 4,399.39 mi (7,080.13 km) |
| Box Elder to Ilfracombe | 4,270.38 mi (6,872.51 km) |
| Box Elder to Ilkeston | 4,292.76 mi (6,908.52 km) |
| Box Elder to Ilkley | 4,236.25 mi (6,817.58 km) |
| Box Elder to Immingham | 4,301.42 mi (6,922.46 km) |
| Box Elder to Ince-in-Makerfield | 4,226.50 mi (6,801.90 km) |
| Box Elder to Inverness | 4,018.81 mi (6,467.65 km) |
| Box Elder to Inverurie | 4,083.39 mi (6,571.59 km) |
| Box Elder to Ipswich | 4,413.12 mi (7,102.23 km) |
| Box Elder to Irlam | 4,236.26 mi (6,817.61 km) |
| Box Elder to Irthlingborough | 4,343.14 mi (6,989.61 km) |
| Box Elder to Irvine | 4,076.22 mi (6,560.04 km) |
| Box Elder to Islington | 4,393.65 mi (7,070.89 km) |
