| Helena to Dillenburg | 4,832.23 mi (7,776.72 km) |
| Helena to Dillingen | 5,010.23 mi (8,063.18 km) |
| Helena to Dillingen | 4,862.30 mi (7,825.11 km) |
| Helena to Dingolfing | 5,062.24 mi (8,146.88 km) |
| Helena to Dinkelsbuhl | 4,978.52 mi (8,012.15 km) |
| Helena to Dinklage | 4,724.98 mi (7,604.12 km) |
| Helena to Dinslaken | 4,745.01 mi (7,636.35 km) |
| Helena to Dippoldiswalde | 4,966.75 mi (7,993.20 km) |
| Helena to Ditzingen | 4,956.88 mi (7,977.32 km) |
| Helena to Dobeln | 4,939.93 mi (7,950.04 km) |
| Helena to Doberlug-Kirchhain | 4,923.79 mi (7,924.08 km) |
| Helena to Donaueschingen | 4,988.14 mi (8,027.64 km) |
| Helena to Donauworth | 5,012.13 mi (8,066.25 km) |
| Helena to Donzdorf | 4,985.72 mi (8,023.75 km) |
| Helena to Dorfen | 5,073.15 mi (8,164.45 km) |
