| Pontypridd to Dallas (Texas) | 4,618.28 mi (7,432.41 km) |
| Pontypridd to Dalton (Georgia) | 4,047.99 mi (6,514.61 km) |
| Pontypridd to Daly City (California) | 5,259.49 mi (8,464.33 km) |
| Pontypridd to Damascus (Maryland) | 3,521.34 mi (5,667.05 km) |
| Pontypridd to Damascus (Oregon) | 4,818.80 mi (7,755.11 km) |
| Pontypridd to Dana Point (California) | 5,345.97 mi (8,603.51 km) |
| Pontypridd to Danbury (Connecticut) | 3,276.20 mi (5,272.54 km) |
| Pontypridd to Dania Beach (Florida) | 4,274.70 mi (6,879.47 km) |
| Pontypridd to Danville (California) | 5,237.01 mi (8,428.15 km) |
| Pontypridd to Danville (Illinois) | 3,900.30 mi (6,276.93 km) |
| Pontypridd to Danville (Indiana) | 3,874.47 mi (6,235.35 km) |
| Pontypridd to Danville (Kentucky) | 3,904.06 mi (6,282.98 km) |
| Pontypridd to Danville (Virginia) | 3,734.00 mi (6,009.29 km) |
| Pontypridd to Daphne (Alabama) | 4,370.09 mi (7,032.98 km) |
| Pontypridd to Darby (Pennsylvania) | 3,413.20 mi (5,493.01 km) |
