| Cwmbran to Dover (New Jersey) | 3,354.95 mi (5,399.27 km) |
| Cwmbran to Dover (Ohio) | 3,651.12 mi (5,875.91 km) |
| Cwmbran to Downers Grove (Illinois) | 3,850.86 mi (6,197.37 km) |
| Cwmbran to Downey (California) | 5,342.63 mi (8,598.14 km) |
| Cwmbran to Dranesville (Virginia) | 3,552.83 mi (5,717.72 km) |
| Cwmbran to Draper (Utah) | 4,773.48 mi (7,682.17 km) |
| Cwmbran to Drexel Heights (Arizona) | 5,198.80 mi (8,366.65 km) |
| Cwmbran to Drexel Hill (Pennsylvania) | 3,425.94 mi (5,513.52 km) |
| Cwmbran to Duarte (California) | 5,324.08 mi (8,568.27 km) |
| Cwmbran to Dublin (California) | 5,247.62 mi (8,445.23 km) |
| Cwmbran to Dublin (Georgia) | 4,083.77 mi (6,572.19 km) |
| Cwmbran to Dublin (Ohio) | 3,736.53 mi (6,013.36 km) |
| Cwmbran to Dubuque (Iowa) | 3,920.94 mi (6,310.15 km) |
| Cwmbran to Duluth (Georgia) | 4,063.10 mi (6,538.93 km) |
| Cwmbran to Duluth (Minnesota) | 3,778.63 mi (6,081.12 km) |
