| Herndon to Homer Glen (Illinois) | 585.27 mi (941.89 km) |
| Herndon to Homestead (Florida) | 949.82 mi (1,528.59 km) |
| Herndon to Homewood (Alabama) | 648.02 mi (1,042.89 km) |
| Herndon to Homewood (Illinois) | 570.04 mi (917.39 km) |
| Herndon to Homosassa Springs (Florida) | 761.16 mi (1,224.97 km) |
| Herndon to Honeygo (Maryland) | 59.50 mi (95.76 km) |
| Herndon to Honolulu (Hawaii) | 4,807.96 mi (7,737.67 km) |
| Herndon to Hoover (Alabama) | 651.63 mi (1,048.70 km) |
| Herndon to Hopatcong (New Jersey) | 199.12 mi (320.45 km) |
| Herndon to Hope Mills (North Carolina) | 289.61 mi (466.08 km) |
| Herndon to Hopewell (Virginia) | 116.07 mi (186.79 km) |
| Herndon to Hopkins (Minnesota) | 918.10 mi (1,477.54 km) |
| Herndon to Hopkinsville (Kentucky) | 569.16 mi (915.97 km) |
| Herndon to Horizon City (Texas) | 1,691.87 mi (2,722.80 km) |
| Herndon to Horizon West (Florida) | 766.69 mi (1,233.86 km) |
