| Delaware to Dover (New Jersey) | 448.51 mi (721.81 km) |
| Delaware to Dover (Ohio) | 85.53 mi (137.65 km) |
| Delaware to Downers Grove (Illinois) | 277.87 mi (447.19 km) |
| Delaware to Downey (California) | 1,967.20 mi (3,165.90 km) |
| Delaware to Dranesville (Virginia) | 316.27 mi (508.99 km) |
| Delaware to Draper (Utah) | 1,508.16 mi (2,427.15 km) |
| Delaware to Drexel Heights (Arizona) | 1,649.31 mi (2,654.32 km) |
| Delaware to Drexel Hill (Pennsylvania) | 411.09 mi (661.58 km) |
| Delaware to Duarte (California) | 1,951.65 mi (3,140.88 km) |
| Delaware to Dublin (California) | 2,075.44 mi (3,340.10 km) |
| Delaware to Dublin (Georgia) | 535.47 mi (861.76 km) |
| Delaware to Dublin (Ohio) | 12.59 mi (20.26 km) |
| Delaware to Dubuque (Iowa) | 424.01 mi (682.39 km) |
| Delaware to Duluth (Georgia) | 437.90 mi (704.74 km) |
| Delaware to Duluth (Minnesota) | 637.41 mi (1,025.82 km) |
