| Cities | Distance |
|---|---|
| Smolyan to Navodari | 273.70 mi (440.48 km) |
| Smolyan to Negresti-Oas | 438.80 mi (706.18 km) |
| Smolyan to Nehoiu | 272.60 mi (438.71 km) |
| Smolyan to Ocna Mures | 334.72 mi (538.68 km) |
| Smolyan to Odobesti | 312.27 mi (502.55 km) |
| Smolyan to Odorheiu Secuiesc | 328.22 mi (528.21 km) |
| Smolyan to Oltenita | 198.85 mi (320.02 km) |
| Smolyan to Onesti | 339.02 mi (545.59 km) |
| Smolyan to Oradea | 403.28 mi (649.02 km) |
| Smolyan to Orastie | 304.15 mi (489.49 km) |
| Smolyan to Oravita | 282.83 mi (455.18 km) |
| Smolyan to Orsova | 246.17 mi (396.18 km) |
| Smolyan to Otelu Rosu | 296.18 mi (476.66 km) |
| Smolyan to Otopeni | 216.32 mi (348.13 km) |
| Smolyan to Ovidiu | 269.38 mi (433.52 km) |