| Cities | Distance |
|---|---|
| Smolyan to Oria | 375.68 mi (604.59 km) |
| Smolyan to Oristano | 849.88 mi (1,367.75 km) |
| Smolyan to Orta Nova | 465.57 mi (749.25 km) |
| Smolyan to Orte | 634.39 mi (1,020.95 km) |
| Smolyan to Ortona | 531.46 mi (855.30 km) |
| Smolyan to Orvieto | 649.03 mi (1,044.52 km) |
| Smolyan to Orzinuovi | 784.37 mi (1,262.31 km) |
| Smolyan to Osimo | 585.48 mi (942.24 km) |
| Smolyan to Ospitaletto | 780.57 mi (1,256.20 km) |
| Smolyan to Ostuni | 374.73 mi (603.06 km) |
| Smolyan to Ottaviano | 533.39 mi (858.41 km) |
| Smolyan to Ovada | 835.28 mi (1,344.25 km) |
| Smolyan to Ozieri | 819.23 mi (1,318.43 km) |
| Smolyan to Paceco | 690.64 mi (1,111.48 km) |
| Smolyan to Pachino | 613.95 mi (988.05 km) |