| Healdsburg to Dormagen | 5,532.08 mi (8,903.02 km) |
| Healdsburg to Dornstadt | 5,761.07 mi (9,271.55 km) |
| Healdsburg to Dorsten | 5,505.30 mi (8,859.93 km) |
| Healdsburg to Dortmund | 5,526.27 mi (8,893.67 km) |
| Healdsburg to Dorverden | 5,497.07 mi (8,846.69 km) |
| Healdsburg to Dossenheim | 5,672.48 mi (9,128.97 km) |
| Healdsburg to Dreieich | 5,642.50 mi (9,080.72 km) |
| Healdsburg to Drensteinfurt | 5,518.03 mi (8,880.40 km) |
| Healdsburg to Dresden | 5,708.11 mi (9,186.32 km) |
| Healdsburg to Drochtersen | 5,453.28 mi (8,776.21 km) |
| Healdsburg to Drolshagen | 5,560.73 mi (8,949.14 km) |
| Healdsburg to Duderstadt | 5,597.50 mi (9,008.30 km) |
| Healdsburg to Duisburg | 5,512.34 mi (8,871.25 km) |
| Healdsburg to Dulmen | 5,504.12 mi (8,858.02 km) |
| Healdsburg to Duren | 5,539.60 mi (8,915.12 km) |
