| Delaware to Dumas (Texas) | 1,069.56 mi (1,721.30 km) |
| Delaware to Dumont (New Jersey) | 478.29 mi (769.73 km) |
| Delaware to Duncan (Oklahoma) | 904.73 mi (1,456.02 km) |
| Delaware to Duncanville (Texas) | 930.88 mi (1,498.11 km) |
| Delaware to Dundalk (Maryland) | 356.27 mi (573.36 km) |
| Delaware to Dunedin (Florida) | 846.70 mi (1,362.64 km) |
| Delaware to Dunkirk (New York) | 246.18 mi (396.19 km) |
| Delaware to Dunmore (Pennsylvania) | 397.85 mi (640.27 km) |
| Delaware to Dunwoody (Georgia) | 443.54 mi (713.81 km) |
| Delaware to Durango (Colorado) | 1,347.73 mi (2,168.97 km) |
| Delaware to Durant (Oklahoma) | 851.25 mi (1,369.95 km) |
| Delaware to Durham (North Carolina) | 373.96 mi (601.82 km) |
| Delaware to Dyer (Indiana) | 246.29 mi (396.37 km) |
| Delaware to Dyersburg (Tennessee) | 450.36 mi (724.79 km) |
| Delaware to Eagan (Minnesota) | 600.83 mi (966.94 km) |
