| Mackworth to Dardenne Prairie (Missouri) | 4,117.71 mi (6,626.82 km) |
| Mackworth to Darien (Illinois) | 3,869.54 mi (6,227.43 km) |
| Mackworth to Davenport (Iowa) | 3,976.08 mi (6,398.88 km) |
| Mackworth to Davidson (North Carolina) | 3,892.11 mi (6,263.75 km) |
| Mackworth to Davie (Florida) | 4,342.22 mi (6,988.13 km) |
| Mackworth to Davis (California) | 5,176.48 mi (8,330.74 km) |
| Mackworth to Dayton (Nevada) | 5,071.87 mi (8,162.38 km) |
| Mackworth to Dayton (Ohio) | 3,818.93 mi (6,145.97 km) |
| Mackworth to Daytona Beach (Florida) | 4,215.68 mi (6,784.48 km) |
| Mackworth to De Pere (Wisconsin) | 3,746.99 mi (6,030.19 km) |
| Mackworth to De Witt (New York) | 3,354.90 mi (5,399.19 km) |
| Mackworth to Dearborn (Michigan) | 3,662.77 mi (5,894.66 km) |
| Mackworth to Dearborn Heights (Michigan) | 3,665.04 mi (5,898.31 km) |
| Mackworth to DeBary (Florida) | 4,241.09 mi (6,825.37 km) |
| Mackworth to Decatur (Alabama) | 4,181.58 mi (6,729.60 km) |
