| Cwmbran to Dixon (Illinois) | 3,904.71 mi (6,284.03 km) |
| Cwmbran to Dobbs Ferry (New York) | 3,321.22 mi (5,344.99 km) |
| Cwmbran to Doctor Phillips (Florida) | 4,224.59 mi (6,798.83 km) |
| Cwmbran to Dodge City (Kansas) | 4,500.27 mi (7,242.48 km) |
| Cwmbran to Dolton (Illinois) | 3,842.32 mi (6,183.61 km) |
| Cwmbran to Donna (Texas) | 5,025.77 mi (8,088.19 km) |
| Cwmbran to Dorado (Puerto Rico) | 4,084.69 mi (6,573.67 km) |
| Cwmbran to Doral (Florida) | 4,308.40 mi (6,933.70 km) |
| Cwmbran to Doraville (Georgia) | 4,072.83 mi (6,554.58 km) |
| Cwmbran to Dothan (Alabama) | 4,250.15 mi (6,839.96 km) |
| Cwmbran to Douglas (Arizona) | 5,187.34 mi (8,348.22 km) |
| Cwmbran to Douglas (Georgia) | 4,130.85 mi (6,647.97 km) |
| Cwmbran to Douglasville (Georgia) | 4,098.81 mi (6,596.39 km) |
| Cwmbran to Dover (Delaware) | 3,469.41 mi (5,583.47 km) |
| Cwmbran to Dover (New Hampshire) | 3,108.63 mi (5,002.86 km) |
