| Smolyan to Dillingen | 843.48 mi (1,357.46 km) |
| Smolyan to Dillingen | 1,018.82 mi (1,639.64 km) |
| Smolyan to Dingolfing | 767.29 mi (1,234.83 km) |
| Smolyan to Dinkelsbuhl | 866.89 mi (1,395.13 km) |
| Smolyan to Dinklage | 1,087.30 mi (1,749.85 km) |
| Smolyan to Dinslaken | 1,092.15 mi (1,757.65 km) |
| Smolyan to Dippoldiswalde | 829.90 mi (1,335.59 km) |
| Smolyan to Ditzingen | 908.14 mi (1,461.51 km) |
| Smolyan to Dobeln | 857.85 mi (1,380.58 km) |
| Smolyan to Doberlug-Kirchhain | 869.68 mi (1,399.62 km) |
| Smolyan to Donaueschingen | 905.69 mi (1,457.57 km) |
| Smolyan to Donauworth | 834.97 mi (1,343.75 km) |
| Smolyan to Donzdorf | 873.34 mi (1,405.51 km) |
| Smolyan to Dorfen | 766.63 mi (1,233.77 km) |
| Smolyan to Dormagen | 1,072.24 mi (1,725.61 km) |
