| Iowa City to Hoddesdon | 4,100.65 mi (6,599.36 km) |
| Iowa City to Holbeach | 4,066.24 mi (6,543.97 km) |
| Iowa City to Holborn | 4,105.17 mi (6,606.63 km) |
| Iowa City to Hollinwood | 3,964.07 mi (6,379.55 km) |
| Iowa City to Holyhead | 3,879.07 mi (6,242.76 km) |
| Iowa City to Holywell | 3,932.26 mi (6,328.36 km) |
| Iowa City to Honiton | 4,012.88 mi (6,458.10 km) |
| Iowa City to Horbury | 3,980.89 mi (6,406.62 km) |
| Iowa City to Horley | 4,114.91 mi (6,622.31 km) |
| Iowa City to Hornchurch | 4,116.09 mi (6,624.20 km) |
| Iowa City to Horndean | 4,092.77 mi (6,586.68 km) |
| Iowa City to Hornsey | 4,102.72 mi (6,602.69 km) |
| Iowa City to Horsell | 4,094.98 mi (6,590.23 km) |
| Iowa City to Horsforth | 3,972.06 mi (6,392.41 km) |
| Iowa City to Horsham | 4,113.02 mi (6,619.27 km) |
