| Rancho Santa Margarita to Dallas (Oregon) | 837.25 mi (1,347.43 km) |
| Rancho Santa Margarita to Dallas (Texas) | 1,203.59 mi (1,936.99 km) |
| Rancho Santa Margarita to Dalton (Georgia) | 1,857.93 mi (2,990.06 km) |
| Rancho Santa Margarita to Daly City (California) | 391.30 mi (629.73 km) |
| Rancho Santa Margarita to Damascus (Maryland) | 2,259.94 mi (3,637.02 km) |
| Rancho Santa Margarita to Damascus (Oregon) | 854.22 mi (1,374.73 km) |
| Rancho Santa Margarita to Dana Point (California) | 12.32 mi (19.82 km) |
| Rancho Santa Margarita to Danbury (Connecticut) | 2,449.73 mi (3,942.47 km) |
| Rancho Santa Margarita to Dania Beach (Florida) | 2,290.54 mi (3,686.26 km) |
| Rancho Santa Margarita to Danville (California) | 378.76 mi (609.56 km) |
| Rancho Santa Margarita to Danville (Illinois) | 1,708.14 mi (2,748.99 km) |
| Rancho Santa Margarita to Danville (Indiana) | 1,764.43 mi (2,839.58 km) |
| Rancho Santa Margarita to Danville (Kentucky) | 1,854.16 mi (2,983.98 km) |
| Rancho Santa Margarita to Danville (Virginia) | 2,154.11 mi (3,466.71 km) |
| Rancho Santa Margarita to Daphne (Alabama) | 1,745.15 mi (2,808.55 km) |
