| Duffel to Decatur (Georgia) | 4,399.70 mi (7,080.63 km) |
| Duffel to Decatur (Illinois) | 4,282.65 mi (6,892.26 km) |
| Duffel to Deer Park (New York) | 3,629.53 mi (5,841.17 km) |
| Duffel to Deer Park (Texas) | 5,036.27 mi (8,105.10 km) |
| Duffel to Deerfield (Illinois) | 4,131.05 mi (6,648.28 km) |
| Duffel to Deerfield Beach (Florida) | 4,600.44 mi (7,403.69 km) |
| Duffel to Defiance (Ohio) | 4,041.23 mi (6,503.73 km) |
| Duffel to DeForest (Wisconsin) | 4,135.34 mi (6,655.18 km) |
| Duffel to DeKalb (Illinois) | 4,175.48 mi (6,719.79 km) |
| Duffel to Del Aire (California) | 5,617.13 mi (9,039.89 km) |
| Duffel to Del City (Oklahoma) | 4,822.42 mi (7,760.94 km) |
| Duffel to Del Rio (Texas) | 5,273.60 mi (8,487.04 km) |
| Duffel to DeLand (Florida) | 4,512.33 mi (7,261.90 km) |
| Duffel to Delano (California) | 5,535.85 mi (8,909.09 km) |
| Duffel to Delaware (Ohio) | 4,038.04 mi (6,498.60 km) |
