| Smolyan to Dabuleni | 156.31 mi (251.56 km) |
| Smolyan to Darabani | 465.47 mi (749.10 km) |
| Smolyan to Darmanesti | 342.34 mi (550.94 km) |
| Smolyan to Dej | 382.84 mi (616.12 km) |
| Smolyan to Deva | 309.82 mi (498.61 km) |
| Smolyan to Dolhasca | 414.76 mi (667.50 km) |
| Smolyan to Dorohoi | 448.35 mi (721.56 km) |
| Smolyan to Draganesti-Olt | 178.91 mi (287.93 km) |
| Smolyan to Dragasani | 213.81 mi (344.09 km) |
| Smolyan to Drobeta-Turnu Severin | 234.72 mi (377.74 km) |
| Smolyan to Fagaras | 294.75 mi (474.36 km) |
| Smolyan to Falticeni | 413.57 mi (665.58 km) |
| Smolyan to Fetesti | 251.34 mi (404.50 km) |
| Smolyan to Filiasi | 203.54 mi (327.57 km) |
| Smolyan to Flamanzi | 425.78 mi (685.23 km) |
