| Helena to Dormagen | 4,771.96 mi (7,679.72 km) |
| Helena to Dornstadt | 5,000.92 mi (8,048.20 km) |
| Helena to Dorsten | 4,746.48 mi (7,638.73 km) |
| Helena to Dortmund | 4,767.94 mi (7,673.25 km) |
| Helena to Dorverden | 4,744.40 mi (7,635.37 km) |
| Helena to Dossenheim | 4,912.09 mi (7,905.25 km) |
| Helena to Dreieich | 4,883.17 mi (7,858.70 km) |
| Helena to Drensteinfurt | 4,760.67 mi (7,661.56 km) |
| Helena to Dresden | 4,959.85 mi (7,982.11 km) |
| Helena to Drochtersen | 4,702.77 mi (7,568.38 km) |
| Helena to Drolshagen | 4,801.92 mi (7,727.94 km) |
| Helena to Duderstadt | 4,843.74 mi (7,795.24 km) |
| Helena to Duisburg | 4,752.78 mi (7,648.86 km) |
| Helena to Dulmen | 4,746.11 mi (7,638.13 km) |
| Helena to Duren | 4,778.43 mi (7,690.13 km) |
