| Niederkassel to Delhi (California) | 5,567.99 mi (8,960.81 km) |
| Niederkassel to Delray Beach (Florida) | 4,702.22 mi (7,567.49 km) |
| Niederkassel to Deltona (Florida) | 4,625.58 mi (7,444.15 km) |
| Niederkassel to Deming (New Mexico) | 5,462.46 mi (8,790.98 km) |
| Niederkassel to Denison (Texas) | 4,982.26 mi (8,018.17 km) |
| Niederkassel to Dent (Ohio) | 4,257.41 mi (6,851.63 km) |
| Niederkassel to Denton (Texas) | 5,032.13 mi (8,098.43 km) |
| Niederkassel to Dentsville (South Carolina) | 4,358.77 mi (7,014.75 km) |
| Niederkassel to Denver (Colorado) | 4,951.66 mi (7,968.93 km) |
| Niederkassel to Depew (New York) | 3,855.06 mi (6,204.12 km) |
| Niederkassel to Derby (Connecticut) | 3,704.02 mi (5,961.04 km) |
| Niederkassel to Derby (Kansas) | 4,807.65 mi (7,737.16 km) |
| Niederkassel to Des Moines (Iowa) | 4,471.69 mi (7,196.50 km) |
| Niederkassel to Des Moines (Washington) | 5,015.11 mi (8,071.04 km) |
| Niederkassel to Des Plaines (Illinois) | 4,242.53 mi (6,827.69 km) |
