| Diamond Bar to Dallas (Oregon) | 809.16 mi (1,302.21 km) |
| Diamond Bar to Dallas (Texas) | 1,214.95 mi (1,955.27 km) |
| Diamond Bar to Dalton (Georgia) | 1,865.16 mi (3,001.69 km) |
| Diamond Bar to Daly City (California) | 364.31 mi (586.30 km) |
| Diamond Bar to Damascus (Maryland) | 2,262.23 mi (3,640.71 km) |
| Diamond Bar to Damascus (Oregon) | 826.38 mi (1,329.93 km) |
| Diamond Bar to Dana Point (California) | 36.98 mi (59.51 km) |
| Diamond Bar to Danbury (Connecticut) | 2,450.03 mi (3,942.94 km) |
| Diamond Bar to Dania Beach (Florida) | 2,304.45 mi (3,708.65 km) |
| Diamond Bar to Danville (California) | 351.26 mi (565.29 km) |
| Diamond Bar to Danville (Illinois) | 1,709.40 mi (2,751.02 km) |
| Diamond Bar to Danville (Indiana) | 1,766.22 mi (2,842.45 km) |
| Diamond Bar to Danville (Kentucky) | 1,858.31 mi (2,990.67 km) |
| Diamond Bar to Danville (Virginia) | 2,159.02 mi (3,474.60 km) |
| Diamond Bar to Daphne (Alabama) | 1,757.16 mi (2,827.88 km) |
