| Niederkassel to Dallas (Texas) | 5,040.66 mi (8,112.17 km) |
| Niederkassel to Dalton (Georgia) | 4,485.59 mi (7,218.86 km) |
| Niederkassel to Daly City (California) | 5,599.02 mi (9,010.76 km) |
| Niederkassel to Damascus (Maryland) | 3,961.02 mi (6,374.64 km) |
| Niederkassel to Damascus (Oregon) | 5,135.24 mi (8,264.38 km) |
| Niederkassel to Dana Point (California) | 5,713.17 mi (9,194.47 km) |
| Niederkassel to Danbury (Connecticut) | 3,716.26 mi (5,980.75 km) |
| Niederkassel to Dania Beach (Florida) | 4,725.36 mi (7,604.73 km) |
| Niederkassel to Danville (California) | 5,577.97 mi (8,976.87 km) |
| Niederkassel to Danville (Illinois) | 4,323.40 mi (6,957.84 km) |
| Niederkassel to Danville (Indiana) | 4,300.29 mi (6,920.65 km) |
| Niederkassel to Danville (Kentucky) | 4,336.92 mi (6,979.60 km) |
| Niederkassel to Danville (Virginia) | 4,175.47 mi (6,719.77 km) |
| Niederkassel to Daphne (Alabama) | 4,810.05 mi (7,741.02 km) |
| Niederkassel to Darby (Pennsylvania) | 3,853.92 mi (6,202.28 km) |
