| Iowa City to Ickenham | 4,091.39 mi (6,584.45 km) |
| Iowa City to Ifield | 4,115.33 mi (6,622.98 km) |
| Iowa City to Ilford | 4,111.32 mi (6,616.54 km) |
| Iowa City to Ilfracombe | 3,963.94 mi (6,379.35 km) |
| Iowa City to Ilkeston | 4,012.27 mi (6,457.13 km) |
| Iowa City to Ilkley | 3,962.78 mi (6,377.48 km) |
| Iowa City to Immingham | 4,030.69 mi (6,486.76 km) |
| Iowa City to Ince-in-Makerfield | 3,946.77 mi (6,351.72 km) |
| Iowa City to Inverness | 3,772.36 mi (6,071.02 km) |
| Iowa City to Inverurie | 3,840.57 mi (6,180.81 km) |
| Iowa City to Ipswich | 4,133.46 mi (6,652.16 km) |
| Iowa City to Irlam | 3,956.26 mi (6,366.98 km) |
| Iowa City to Irthlingborough | 4,059.30 mi (6,532.81 km) |
| Iowa City to Irvine | 3,809.71 mi (6,131.14 km) |
| Iowa City to Islington | 4,104.77 mi (6,605.98 km) |
