| Duffel to Dardenne Prairie (Missouri) | 4,404.23 mi (7,087.93 km) |
| Duffel to Darien (Illinois) | 4,155.94 mi (6,688.33 km) |
| Duffel to Davenport (Iowa) | 4,262.09 mi (6,859.18 km) |
| Duffel to Davidson (North Carolina) | 4,176.24 mi (6,721.01 km) |
| Duffel to Davie (Florida) | 4,618.60 mi (7,432.92 km) |
| Duffel to Davis (California) | 5,442.86 mi (8,759.43 km) |
| Duffel to Dayton (Nevada) | 5,340.19 mi (8,594.20 km) |
| Duffel to Dayton (Ohio) | 4,105.42 mi (6,607.04 km) |
| Duffel to Daytona Beach (Florida) | 4,495.60 mi (7,234.97 km) |
| Duffel to De Pere (Wisconsin) | 4,032.65 mi (6,489.92 km) |
| Duffel to De Witt (New York) | 3,640.95 mi (5,859.54 km) |
| Duffel to Dearborn (Michigan) | 3,949.39 mi (6,355.94 km) |
| Duffel to Dearborn Heights (Michigan) | 3,951.66 mi (6,359.59 km) |
| Duffel to DeBary (Florida) | 4,520.92 mi (7,275.71 km) |
| Duffel to Decatur (Alabama) | 4,467.44 mi (7,189.65 km) |
