| Cities | Distance |
|---|---|
| Harmanli to Navodari | 214.31 mi (344.90 km) |
| Harmanli to Negresti-Oas | 427.61 mi (688.16 km) |
| Harmanli to Nehoiu | 237.15 mi (381.66 km) |
| Harmanli to Ocna Mures | 324.07 mi (521.55 km) |
| Harmanli to Odobesti | 271.16 mi (436.39 km) |
| Harmanli to Odorheiu Secuiesc | 304.12 mi (489.43 km) |
| Harmanli to Oltenita | 153.37 mi (246.82 km) |
| Harmanli to Onesti | 301.94 mi (485.93 km) |
| Harmanli to Oradea | 405.47 mi (652.54 km) |
| Harmanli to Orastie | 302.13 mi (486.22 km) |
| Harmanli to Oravita | 301.12 mi (484.61 km) |
| Harmanli to Orsova | 261.15 mi (420.28 km) |
| Harmanli to Otelu Rosu | 304.45 mi (489.97 km) |
| Harmanli to Otopeni | 181.00 mi (291.29 km) |
| Harmanli to Ovidiu | 209.91 mi (337.82 km) |