| Hemel Hempstead to Dallas (Texas) | 4,725.36 mi (7,604.74 km) |
| Hemel Hempstead to Dalton (Georgia) | 4,161.24 mi (6,696.87 km) |
| Hemel Hempstead to Daly City (California) | 5,338.24 mi (8,591.06 km) |
| Hemel Hempstead to Damascus (Maryland) | 3,635.47 mi (5,850.72 km) |
| Hemel Hempstead to Damascus (Oregon) | 4,889.87 mi (7,869.49 km) |
| Hemel Hempstead to Dana Point (California) | 5,433.80 mi (8,744.86 km) |
| Hemel Hempstead to Danbury (Connecticut) | 3,390.48 mi (5,456.44 km) |
| Hemel Hempstead to Dania Beach (Florida) | 4,394.97 mi (7,073.02 km) |
| Hemel Hempstead to Danville (California) | 5,316.20 mi (8,555.60 km) |
| Hemel Hempstead to Danville (Illinois) | 4,007.49 mi (6,449.43 km) |
| Hemel Hempstead to Danville (Indiana) | 3,982.74 mi (6,409.59 km) |
| Hemel Hempstead to Danville (Kentucky) | 4,015.24 mi (6,461.90 km) |
| Hemel Hempstead to Danville (Virginia) | 3,849.00 mi (6,194.36 km) |
| Hemel Hempstead to Daphne (Alabama) | 4,484.44 mi (7,217.02 km) |
| Hemel Hempstead to Darby (Pennsylvania) | 3,527.80 mi (5,677.45 km) |
