| Niagara Falls to Hillcrest Heights (Maryland) | 312.81 mi (503.42 km) |
| Niagara Falls to Hilliard (Ohio) | 300.73 mi (483.97 km) |
| Niagara Falls to Hillsboro (Oregon) | 2,150.85 mi (3,461.45 km) |
| Niagara Falls to Hillsborough (California) | 2,289.02 mi (3,683.81 km) |
| Niagara Falls to Hillsborough (New Jersey) | 286.97 mi (461.84 km) |
| Niagara Falls to Hilo (Hawaii) | 4,608.00 mi (7,415.86 km) |
| Niagara Falls to Hilton Head Island (South Carolina) | 759.20 mi (1,221.81 km) |
| Niagara Falls to Hinesville (Georgia) | 791.32 mi (1,273.51 km) |
| Niagara Falls to Hinsdale (Illinois) | 462.84 mi (744.88 km) |
| Niagara Falls to Hobart (Indiana) | 435.66 mi (701.12 km) |
| Niagara Falls to Hobbs (New Mexico) | 1,490.68 mi (2,399.01 km) |
| Niagara Falls to Hobe Sound (Florida) | 1,108.63 mi (1,784.16 km) |
| Niagara Falls to Hoboken (New Jersey) | 303.27 mi (488.06 km) |
| Niagara Falls to Hockessin (Delaware) | 286.41 mi (460.93 km) |
| Niagara Falls to Hoffman Estates (Illinois) | 469.77 mi (756.02 km) |
