| Healdsburg to Dallas (Oregon) | 435.88 mi (701.48 km) |
| Healdsburg to Dallas (Texas) | 1,512.83 mi (2,434.66 km) |
| Healdsburg to Dalton (Georgia) | 2,101.14 mi (3,381.46 km) |
| Healdsburg to Daly City (California) | 68.18 mi (109.72 km) |
| Healdsburg to Damascus (Maryland) | 2,427.88 mi (3,907.30 km) |
| Healdsburg to Damascus (Oregon) | 470.39 mi (757.02 km) |
| Healdsburg to Dana Point (California) | 458.01 mi (737.09 km) |
| Healdsburg to Danbury (Connecticut) | 2,585.41 mi (4,160.82 km) |
| Healdsburg to Dania Beach (Florida) | 2,612.76 mi (4,204.83 km) |
| Healdsburg to Danville (California) | 74.14 mi (119.31 km) |
| Healdsburg to Danville (Illinois) | 1,873.28 mi (3,014.75 km) |
| Healdsburg to Danville (Indiana) | 1,935.43 mi (3,114.77 km) |
| Healdsburg to Danville (Kentucky) | 2,056.11 mi (3,309.00 km) |
| Healdsburg to Danville (Virginia) | 2,360.69 mi (3,799.17 km) |
| Healdsburg to Daphne (Alabama) | 2,050.68 mi (3,300.25 km) |
