| Rickmansworth to Dover (New Jersey) | 3,459.60 mi (5,567.68 km) |
| Rickmansworth to Dover (Ohio) | 3,753.30 mi (6,040.35 km) |
| Rickmansworth to Downers Grove (Illinois) | 3,949.11 mi (6,355.48 km) |
| Rickmansworth to Downey (California) | 5,426.54 mi (8,733.18 km) |
| Rickmansworth to Dranesville (Virginia) | 3,657.54 mi (5,886.24 km) |
| Rickmansworth to Draper (Utah) | 4,857.54 mi (7,817.46 km) |
| Rickmansworth to Drexel Heights (Arizona) | 5,289.62 mi (8,512.83 km) |
| Rickmansworth to Drexel Hill (Pennsylvania) | 3,530.86 mi (5,682.37 km) |
| Rickmansworth to Duarte (California) | 5,407.98 mi (8,703.30 km) |
| Rickmansworth to Dublin (California) | 5,325.40 mi (8,570.40 km) |
| Rickmansworth to Dublin (Georgia) | 4,189.55 mi (6,742.44 km) |
| Rickmansworth to Dublin (Ohio) | 3,838.26 mi (6,177.09 km) |
| Rickmansworth to Dubuque (Iowa) | 4,017.24 mi (6,465.12 km) |
| Rickmansworth to Duluth (Georgia) | 4,167.81 mi (6,707.43 km) |
| Rickmansworth to Duluth (Minnesota) | 3,870.39 mi (6,228.78 km) |
