| Hemel Hempstead to Dumas (Texas) | 4,760.12 mi (7,660.67 km) |
| Hemel Hempstead to Dumont (New Jersey) | 3,431.34 mi (5,522.21 km) |
| Hemel Hempstead to Duncan (Oklahoma) | 4,678.94 mi (7,530.03 km) |
| Hemel Hempstead to Duncanville (Texas) | 4,738.62 mi (7,626.07 km) |
| Hemel Hempstead to Dundalk (Maryland) | 3,606.97 mi (5,804.85 km) |
| Hemel Hempstead to Dunedin (Florida) | 4,405.32 mi (7,089.67 km) |
| Hemel Hempstead to Dunkirk (New York) | 3,578.29 mi (5,758.70 km) |
| Hemel Hempstead to Dunmore (Pennsylvania) | 3,476.30 mi (5,594.56 km) |
| Hemel Hempstead to Dunwoody (Georgia) | 4,174.88 mi (6,718.82 km) |
| Hemel Hempstead to Durango (Colorado) | 4,894.86 mi (7,877.52 km) |
| Hemel Hempstead to Durant (Oklahoma) | 4,648.99 mi (7,481.82 km) |
| Hemel Hempstead to Durham (North Carolina) | 3,856.60 mi (6,206.61 km) |
| Hemel Hempstead to Dyer (Indiana) | 3,939.89 mi (6,340.64 km) |
| Hemel Hempstead to Dyersburg (Tennessee) | 4,273.95 mi (6,878.25 km) |
| Hemel Hempstead to Eagan (Minnesota) | 3,993.47 mi (6,426.88 km) |
