| Mackworth to Dumas (Texas) | 4,679.58 mi (7,531.06 km) |
| Mackworth to Dumont (New Jersey) | 3,364.12 mi (5,414.02 km) |
| Mackworth to Duncan (Oklahoma) | 4,601.50 mi (7,405.39 km) |
| Mackworth to Duncanville (Texas) | 4,663.04 mi (7,504.44 km) |
| Mackworth to Dundalk (Maryland) | 3,539.80 mi (5,696.76 km) |
| Mackworth to Dunedin (Florida) | 4,344.22 mi (6,991.34 km) |
| Mackworth to Dunkirk (New York) | 3,505.89 mi (5,642.18 km) |
| Mackworth to Dunmore (Pennsylvania) | 3,407.43 mi (5,483.72 km) |
| Mackworth to Dunwoody (Georgia) | 4,107.13 mi (6,609.79 km) |
| Mackworth to Durango (Colorado) | 4,810.68 mi (7,742.04 km) |
| Mackworth to Durant (Oklahoma) | 4,572.84 mi (7,359.28 km) |
| Mackworth to Durham (North Carolina) | 3,791.06 mi (6,101.12 km) |
| Mackworth to Dyer (Indiana) | 3,863.54 mi (6,217.77 km) |
| Mackworth to Dyersburg (Tennessee) | 4,200.83 mi (6,760.57 km) |
| Mackworth to Eagan (Minnesota) | 3,911.82 mi (6,295.46 km) |
