| Herndon to Hormigueros (Puerto Rico) | 1,565.38 mi (2,519.24 km) |
| Herndon to Horn Lake (Mississippi) | 751.41 mi (1,209.28 km) |
| Herndon to Hot Springs (Arkansas) | 919.50 mi (1,479.79 km) |
| Herndon to Hot Springs Village (Arkansas) | 910.34 mi (1,465.06 km) |
| Herndon to Houma (Louisiana) | 997.64 mi (1,605.54 km) |
| Herndon to Houston (Texas) | 1,203.43 mi (1,936.73 km) |
| Herndon to Howard (Wisconsin) | 672.97 mi (1,083.04 km) |
| Herndon to Huber Heights (Ohio) | 364.18 mi (586.09 km) |
| Herndon to Hudson (Florida) | 793.59 mi (1,277.17 km) |
| Herndon to Hudson (Ohio) | 265.47 mi (427.23 km) |
| Herndon to Hudson (Wisconsin) | 888.43 mi (1,429.80 km) |
| Herndon to Hueytown (Alabama) | 659.27 mi (1,061.00 km) |
| Herndon to Hugo (Minnesota) | 904.08 mi (1,454.98 km) |
| Herndon to Humacao (Puerto Rico) | 1,597.16 mi (2,570.37 km) |
| Herndon to Humble (Texas) | 1,189.04 mi (1,913.58 km) |
