| Didcot to Hormigueros (Puerto Rico) | 4,212.69 mi (6,779.66 km) |
| Didcot to Horn Lake (Mississippi) | 4,328.01 mi (6,965.26 km) |
| Didcot to Hot Springs (Arkansas) | 4,469.09 mi (7,192.30 km) |
| Didcot to Hot Springs Village (Arkansas) | 4,457.33 mi (7,173.38 km) |
| Didcot to Houma (Louisiana) | 4,624.06 mi (7,441.71 km) |
| Didcot to Houston (Texas) | 4,801.35 mi (7,727.03 km) |
| Didcot to Howard (Wisconsin) | 3,796.50 mi (6,109.88 km) |
| Didcot to Huber Heights (Ohio) | 3,858.32 mi (6,209.37 km) |
| Didcot to Hudson (Florida) | 4,354.81 mi (7,008.39 km) |
| Didcot to Hudson (Ohio) | 3,689.92 mi (5,938.36 km) |
| Didcot to Hudson (Wisconsin) | 3,948.77 mi (6,354.93 km) |
| Didcot to Hueytown (Alabama) | 4,282.08 mi (6,891.34 km) |
| Didcot to Hugo (Minnesota) | 3,947.52 mi (6,352.92 km) |
| Didcot to Humacao (Puerto Rico) | 4,157.01 mi (6,690.06 km) |
| Didcot to Humble (Texas) | 4,785.80 mi (7,702.00 km) |
