| Mountain Ash to Dixon (Illinois) | 3,890.13 mi (6,260.56 km) |
| Mountain Ash to Dobbs Ferry (New York) | 3,305.95 mi (5,320.41 km) |
| Mountain Ash to Doctor Phillips (Florida) | 4,209.14 mi (6,773.95 km) |
| Mountain Ash to Dodge City (Kansas) | 4,485.99 mi (7,219.51 km) |
| Mountain Ash to Dolton (Illinois) | 3,827.62 mi (6,159.95 km) |
| Mountain Ash to Donna (Texas) | 5,010.70 mi (8,063.94 km) |
| Mountain Ash to Dorado (Puerto Rico) | 4,069.87 mi (6,549.82 km) |
| Mountain Ash to Doral (Florida) | 4,292.92 mi (6,908.79 km) |
| Mountain Ash to Doraville (Georgia) | 4,057.56 mi (6,530.01 km) |
| Mountain Ash to Dothan (Alabama) | 4,234.83 mi (6,815.30 km) |
| Mountain Ash to Douglas (Arizona) | 5,173.28 mi (8,325.59 km) |
| Mountain Ash to Douglas (Georgia) | 4,115.48 mi (6,623.22 km) |
| Mountain Ash to Douglasville (Georgia) | 4,083.55 mi (6,571.83 km) |
| Mountain Ash to Dover (Delaware) | 3,454.10 mi (5,558.83 km) |
| Mountain Ash to Dover (New Hampshire) | 3,093.38 mi (4,978.32 km) |
