| Rhondda to Dallas (Texas) | 4,614.93 mi (7,427.02 km) |
| Rhondda to Dalton (Georgia) | 4,044.61 mi (6,509.17 km) |
| Rhondda to Daly City (California) | 5,256.51 mi (8,459.53 km) |
| Rhondda to Damascus (Maryland) | 3,517.96 mi (5,661.62 km) |
| Rhondda to Damascus (Oregon) | 4,815.96 mi (7,750.54 km) |
| Rhondda to Dana Point (California) | 5,342.85 mi (8,598.48 km) |
| Rhondda to Danbury (Connecticut) | 3,272.82 mi (5,267.10 km) |
| Rhondda to Dania Beach (Florida) | 4,271.37 mi (6,874.10 km) |
| Rhondda to Danville (California) | 5,234.02 mi (8,423.34 km) |
| Rhondda to Danville (Illinois) | 3,896.95 mi (6,271.54 km) |
| Rhondda to Danville (Indiana) | 3,871.11 mi (6,229.95 km) |
| Rhondda to Danville (Kentucky) | 3,900.69 mi (6,277.55 km) |
| Rhondda to Danville (Virginia) | 3,730.62 mi (6,003.85 km) |
| Rhondda to Daphne (Alabama) | 4,366.71 mi (7,027.54 km) |
| Rhondda to Darby (Pennsylvania) | 3,409.82 mi (5,487.57 km) |
