| Hanko to Navodari | 1,097.32 mi (1,765.96 km) |
| Hanko to Negresti-Oas | 826.83 mi (1,330.66 km) |
| Hanko to Nehoiu | 1,009.93 mi (1,625.32 km) |
| Hanko to Ocna Mures | 929.56 mi (1,495.98 km) |
| Hanko to Odobesti | 986.41 mi (1,587.48 km) |
| Hanko to Odorheiu Secuiesc | 938.97 mi (1,511.12 km) |
| Hanko to Oltenita | 1,098.73 mi (1,768.24 km) |
| Hanko to Onesti | 950.74 mi (1,530.06 km) |
| Hanko to Oradea | 882.73 mi (1,420.61 km) |
| Hanko to Orastie | 966.20 mi (1,554.95 km) |
| Hanko to Oravita | 1,023.47 mi (1,647.12 km) |
| Hanko to Orsova | 1,044.13 mi (1,680.37 km) |
| Hanko to Otelu Rosu | 989.37 mi (1,592.24 km) |
| Hanko to Otopeni | 1,063.83 mi (1,712.07 km) |
| Hanko to Ovidiu | 1,100.32 mi (1,770.79 km) |
