| Hennef to Dardenne Prairie (Missouri) | 4,518.79 mi (7,272.28 km) |
| Hennef to Darien (Illinois) | 4,269.95 mi (6,871.82 km) |
| Hennef to Davenport (Iowa) | 4,374.98 mi (7,040.85 km) |
| Hennef to Davidson (North Carolina) | 4,296.08 mi (6,913.87 km) |
| Hennef to Davie (Florida) | 4,740.70 mi (7,629.42 km) |
| Hennef to Davis (California) | 5,535.72 mi (8,908.88 km) |
| Hennef to Dayton (Nevada) | 5,434.57 mi (8,746.10 km) |
| Hennef to Dayton (Ohio) | 4,222.20 mi (6,794.98 km) |
| Hennef to Daytona Beach (Florida) | 4,617.09 mi (7,430.49 km) |
| Hennef to De Pere (Wisconsin) | 4,144.78 mi (6,670.38 km) |
| Hennef to De Witt (New York) | 3,758.88 mi (6,049.33 km) |
| Hennef to Dearborn (Michigan) | 4,065.12 mi (6,542.18 km) |
| Hennef to Dearborn Heights (Michigan) | 4,067.36 mi (6,545.79 km) |
| Hennef to DeBary (Florida) | 4,642.43 mi (7,471.27 km) |
| Hennef to Decatur (Alabama) | 4,585.65 mi (7,379.88 km) |
