| Llantwit Major to Dallas (Texas) | 4,618.59 mi (7,432.90 km) |
| Llantwit Major to Dalton (Georgia) | 4,046.67 mi (6,512.49 km) |
| Llantwit Major to Daly City (California) | 5,264.91 mi (8,473.05 km) |
| Llantwit Major to Damascus (Maryland) | 3,519.78 mi (5,664.54 km) |
| Llantwit Major to Damascus (Oregon) | 4,825.30 mi (7,765.57 km) |
| Llantwit Major to Dana Point (California) | 5,350.00 mi (8,609.99 km) |
| Llantwit Major to Danbury (Connecticut) | 3,274.61 mi (5,269.97 km) |
| Llantwit Major to Dania Beach (Florida) | 4,270.75 mi (6,873.11 km) |
| Llantwit Major to Danville (California) | 5,242.37 mi (8,436.77 km) |
| Llantwit Major to Danville (Illinois) | 3,900.61 mi (6,277.43 km) |
| Llantwit Major to Danville (Indiana) | 3,874.52 mi (6,235.44 km) |
| Llantwit Major to Danville (Kentucky) | 3,903.35 mi (6,281.83 km) |
| Llantwit Major to Danville (Virginia) | 3,732.15 mi (6,006.32 km) |
| Llantwit Major to Daphne (Alabama) | 4,368.42 mi (7,030.30 km) |
| Llantwit Major to Darby (Pennsylvania) | 3,411.49 mi (5,490.27 km) |
