| Philadelphia to Duluth (Minnesota) | 970.57 mi (1,561.98 km) |
| Philadelphia to Dumas (Texas) | 1,484.01 mi (2,388.28 km) |
| Philadelphia to Dumont (New Jersey) | 88.29 mi (142.09 km) |
| Philadelphia to Duncan (Oklahoma) | 1,304.40 mi (2,099.23 km) |
| Philadelphia to Duncanville (Texas) | 1,310.29 mi (2,108.71 km) |
| Philadelphia to Dundalk (Maryland) | 88.51 mi (142.44 km) |
| Philadelphia to Dunedin (Florida) | 935.33 mi (1,505.27 km) |
| Philadelphia to Dunkirk (New York) | 276.99 mi (445.78 km) |
| Philadelphia to Dunmore (Pennsylvania) | 100.36 mi (161.51 km) |
| Philadelphia to Dunwoody (Georgia) | 656.87 mi (1,057.14 km) |
| Philadelphia to Durango (Colorado) | 1,767.35 mi (2,844.27 km) |
| Philadelphia to Durant (Oklahoma) | 1,240.73 mi (1,996.76 km) |
| Philadelphia to Durham (North Carolina) | 345.72 mi (556.38 km) |
| Philadelphia to Dyer (Indiana) | 655.26 mi (1,054.54 km) |
| Philadelphia to Dyersburg (Tennessee) | 821.00 mi (1,321.27 km) |
