| Niagara Falls to Hoddesdon | 3,556.74 mi (5,724.03 km) |
| Niagara Falls to Holbeach | 3,529.44 mi (5,680.09 km) |
| Niagara Falls to Holborn | 3,559.49 mi (5,728.45 km) |
| Niagara Falls to Hollinwood | 3,428.02 mi (5,516.87 km) |
| Niagara Falls to Holyhead | 3,336.91 mi (5,370.23 km) |
| Niagara Falls to Holywell | 3,392.43 mi (5,459.60 km) |
| Niagara Falls to Honiton | 3,456.42 mi (5,562.57 km) |
| Niagara Falls to Horbury | 3,446.98 mi (5,547.38 km) |
| Niagara Falls to Horley | 3,566.86 mi (5,740.31 km) |
| Niagara Falls to Hornchurch | 3,571.32 mi (5,747.48 km) |
| Niagara Falls to Horndean | 3,541.37 mi (5,699.28 km) |
| Niagara Falls to Hornsey | 3,557.47 mi (5,725.19 km) |
| Niagara Falls to Horsell | 3,547.13 mi (5,708.56 km) |
| Niagara Falls to Horsforth | 3,439.27 mi (5,534.96 km) |
| Niagara Falls to Horsham | 3,563.94 mi (5,735.60 km) |
