| Twickenham to Hilliard (Ohio) | 3,852.47 mi (6,199.96 km) |
| Twickenham to Hillsboro (Oregon) | 4,917.05 mi (7,913.22 km) |
| Twickenham to Hillsborough (California) | 5,361.62 mi (8,628.70 km) |
| Twickenham to Hillsborough (New Jersey) | 3,489.23 mi (5,615.37 km) |
| Twickenham to Hilo (Hawaii) | 7,289.33 mi (11,731.04 km) |
| Twickenham to Hilton Head Island (South Carolina) | 4,125.19 mi (6,638.86 km) |
| Twickenham to Hinesville (Georgia) | 4,178.87 mi (6,725.24 km) |
| Twickenham to Hinsdale (Illinois) | 3,956.39 mi (6,367.20 km) |
| Twickenham to Hobart (Indiana) | 3,944.67 mi (6,348.34 km) |
| Twickenham to Hobbs (New Mexico) | 4,985.35 mi (8,023.14 km) |
| Twickenham to Hobe Sound (Florida) | 4,352.18 mi (7,004.16 km) |
| Twickenham to Hoboken (New Jersey) | 3,453.40 mi (5,557.71 km) |
| Twickenham to Hockessin (Delaware) | 3,562.94 mi (5,734.00 km) |
| Twickenham to Hoffman Estates (Illinois) | 3,952.52 mi (6,360.97 km) |
| Twickenham to Holbrook (New York) | 3,412.05 mi (5,491.17 km) |
