| Didcot to Hazleton (Pennsylvania) | 3,483.41 mi (5,606.01 km) |
| Didcot to Healdsburg (California) | 5,280.18 mi (8,497.63 km) |
| Didcot to Heath (Ohio) | 3,784.53 mi (6,090.62 km) |
| Didcot to Heber (Utah) | 4,818.25 mi (7,754.22 km) |
| Didcot to Helena (Alabama) | 4,283.20 mi (6,893.14 km) |
| Didcot to Helena (Montana) | 4,511.09 mi (7,259.90 km) |
| Didcot to Hemet (California) | 5,377.52 mi (8,654.28 km) |
| Didcot to Henderson (Kentucky) | 4,089.97 mi (6,582.17 km) |
| Didcot to Henderson (Nevada) | 5,184.85 mi (8,344.20 km) |
| Didcot to Henderson (North Carolina) | 3,791.53 mi (6,101.88 km) |
| Didcot to Henderson (Texas) | 4,655.78 mi (7,492.76 km) |
| Didcot to Hendersonville (North Carolina) | 4,004.45 mi (6,444.54 km) |
| Didcot to Hendersonville (Tennessee) | 4,124.71 mi (6,638.07 km) |
| Didcot to Hercules (California) | 5,297.85 mi (8,526.06 km) |
| Didcot to Hereford (Texas) | 4,807.59 mi (7,737.06 km) |
