| Herndon to Hilliard (Ohio) | 316.29 mi (509.02 km) |
| Herndon to Hillsboro (Oregon) | 2,340.82 mi (3,767.18 km) |
| Herndon to Hillsborough (California) | 2,416.64 mi (3,889.20 km) |
| Herndon to Hillsborough (New Jersey) | 179.94 mi (289.59 km) |
| Herndon to Hilo (Hawaii) | 4,727.23 mi (7,607.75 km) |
| Herndon to Hilton Head Island (South Carolina) | 505.05 mi (812.80 km) |
| Herndon to Hinesville (Georgia) | 547.91 mi (881.77 km) |
| Herndon to Hinsdale (Illinois) | 587.73 mi (945.86 km) |
| Herndon to Hobart (Indiana) | 549.85 mi (884.90 km) |
| Herndon to Hobbs (New Mexico) | 1,500.66 mi (2,415.07 km) |
| Herndon to Hobe Sound (Florida) | 837.24 mi (1,347.40 km) |
| Herndon to Hoboken (New Jersey) | 216.26 mi (348.03 km) |
| Herndon to Hockessin (Delaware) | 107.03 mi (172.25 km) |
| Herndon to Hoffman Estates (Illinois) | 603.73 mi (971.61 km) |
| Herndon to Holbrook (New York) | 261.25 mi (420.43 km) |
