| Hennef to Decatur (Georgia) | 4,519.13 mi (7,272.83 km) |
| Hennef to Decatur (Illinois) | 4,397.39 mi (7,076.91 km) |
| Hennef to Deer Park (New York) | 3,749.38 mi (6,034.04 km) |
| Hennef to Deer Park (Texas) | 5,153.31 mi (8,293.44 km) |
| Hennef to Deerfield (Illinois) | 4,244.85 mi (6,831.43 km) |
| Hennef to Deerfield Beach (Florida) | 4,722.52 mi (7,600.17 km) |
| Hennef to Defiance (Ohio) | 4,157.11 mi (6,690.21 km) |
| Hennef to DeForest (Wisconsin) | 4,247.71 mi (6,836.03 km) |
| Hennef to DeKalb (Illinois) | 4,289.02 mi (6,902.51 km) |
| Hennef to Del Aire (California) | 5,716.32 mi (9,199.52 km) |
| Hennef to Del City (Oklahoma) | 4,935.49 mi (7,942.90 km) |
| Hennef to Del Rio (Texas) | 5,387.99 mi (8,671.13 km) |
| Hennef to DeLand (Florida) | 4,633.83 mi (7,457.43 km) |
| Hennef to Delano (California) | 5,632.98 mi (9,065.41 km) |
| Hennef to Delaware (Ohio) | 4,154.99 mi (6,686.80 km) |
