| Harker Heights to Hilliard (Ohio) | 1,021.48 mi (1,643.92 km) |
| Harker Heights to Hillsboro (Oregon) | 1,685.22 mi (2,712.10 km) |
| Harker Heights to Hillsborough (California) | 1,475.19 mi (2,374.08 km) |
| Harker Heights to Hillsborough (New Jersey) | 1,438.69 mi (2,315.36 km) |
| Harker Heights to Hilo (Hawaii) | 3,631.85 mi (5,844.90 km) |
| Harker Heights to Hilton Head Island (South Carolina) | 996.03 mi (1,602.95 km) |
| Harker Heights to Hinesville (Georgia) | 945.63 mi (1,521.85 km) |
| Harker Heights to Hinsdale (Illinois) | 916.70 mi (1,475.28 km) |
| Harker Heights to Hobart (Indiana) | 923.54 mi (1,486.29 km) |
| Harker Heights to Hobbs (New Mexico) | 343.47 mi (552.77 km) |
| Harker Heights to Hobe Sound (Florida) | 1,090.91 mi (1,755.65 km) |
| Harker Heights to Hoboken (New Jersey) | 1,475.05 mi (2,373.87 km) |
| Harker Heights to Hockessin (Delaware) | 1,370.78 mi (2,206.05 km) |
| Harker Heights to Hoffman Estates (Illinois) | 923.96 mi (1,486.97 km) |
| Harker Heights to Holbrook (New York) | 1,523.58 mi (2,451.96 km) |
