| South Portland to Dormagen | 3,477.18 mi (5,595.98 km) |
| South Portland to Dornstadt | 3,680.98 mi (5,923.97 km) |
| South Portland to Dorsten | 3,467.66 mi (5,580.67 km) |
| South Portland to Dortmund | 3,491.39 mi (5,618.85 km) |
| South Portland to Dorverden | 3,523.03 mi (5,669.77 km) |
| South Portland to Dossenheim | 3,599.25 mi (5,792.44 km) |
| South Portland to Dreieich | 3,583.93 mi (5,767.77 km) |
| South Portland to Drensteinfurt | 3,494.42 mi (5,623.73 km) |
| South Portland to Dresden | 3,749.79 mi (6,034.70 km) |
| South Portland to Drochtersen | 3,505.41 mi (5,641.41 km) |
| South Portland to Drolshagen | 3,516.77 mi (5,659.70 km) |
| South Portland to Duderstadt | 3,600.86 mi (5,795.02 km) |
| South Portland to Duisburg | 3,465.84 mi (5,577.74 km) |
| South Portland to Dulmen | 3,475.35 mi (5,593.04 km) |
| South Portland to Duren | 3,472.17 mi (5,587.92 km) |
