| Didcot to Dixon (Illinois) | 3,973.94 mi (6,395.44 km) |
| Didcot to Dobbs Ferry (New York) | 3,395.11 mi (5,463.89 km) |
| Didcot to Doctor Phillips (Florida) | 4,300.15 mi (6,920.42 km) |
| Didcot to Dodge City (Kansas) | 4,567.56 mi (7,350.78 km) |
| Didcot to Dolton (Illinois) | 3,912.27 mi (6,296.19 km) |
| Didcot to Donna (Texas) | 5,098.12 mi (8,204.63 km) |
| Didcot to Dorado (Puerto Rico) | 4,159.71 mi (6,694.40 km) |
| Didcot to Doral (Florida) | 4,384.43 mi (7,056.05 km) |
| Didcot to Doraville (Georgia) | 4,146.65 mi (6,673.40 km) |
| Didcot to Dothan (Alabama) | 4,324.44 mi (6,959.51 km) |
| Didcot to Douglas (Arizona) | 5,253.33 mi (8,454.41 km) |
| Didcot to Douglas (Georgia) | 4,205.59 mi (6,768.25 km) |
| Didcot to Douglasville (Georgia) | 4,172.58 mi (6,715.12 km) |
| Didcot to Dover (Delaware) | 3,543.57 mi (5,702.83 km) |
| Didcot to Dover (New Hampshire) | 3,182.32 mi (5,121.45 km) |
