| Penarth to Dixon (Illinois) | 3,905.99 mi (6,286.08 km) |
| Penarth to Dobbs Ferry (New York) | 3,319.51 mi (5,342.24 km) |
| Penarth to Doctor Phillips (Florida) | 4,221.07 mi (6,793.16 km) |
| Penarth to Dodge City (Kansas) | 4,502.46 mi (7,246.01 km) |
| Penarth to Dolton (Illinois) | 3,843.21 mi (6,185.05 km) |
| Penarth to Donna (Texas) | 5,025.17 mi (8,087.24 km) |
| Penarth to Dorado (Puerto Rico) | 4,075.89 mi (6,559.50 km) |
| Penarth to Doral (Florida) | 4,304.06 mi (6,926.71 km) |
| Penarth to Doraville (Georgia) | 4,071.15 mi (6,551.87 km) |
| Penarth to Dothan (Alabama) | 4,248.06 mi (6,836.60 km) |
| Penarth to Douglas (Arizona) | 5,190.09 mi (8,352.65 km) |
| Penarth to Douglas (Georgia) | 4,128.32 mi (6,643.88 km) |
| Penarth to Douglasville (Georgia) | 4,097.17 mi (6,593.76 km) |
| Penarth to Dover (Delaware) | 3,467.45 mi (5,580.32 km) |
| Penarth to Dover (New Hampshire) | 3,107.09 mi (5,000.38 km) |
