| Montalegre to Navodari | 1,830.37 mi (2,945.70 km) |
| Montalegre to Negresti-Oas | 1,573.30 mi (2,531.98 km) |
| Montalegre to Nehoiu | 1,710.68 mi (2,753.07 km) |
| Montalegre to Ocna Mures | 1,590.52 mi (2,559.70 km) |
| Montalegre to Odobesti | 1,745.53 mi (2,809.16 km) |
| Montalegre to Odorheiu Secuiesc | 1,659.33 mi (2,670.44 km) |
| Montalegre to Oltenita | 1,735.28 mi (2,792.66 km) |
| Montalegre to Onesti | 1,729.49 mi (2,783.34 km) |
| Montalegre to Oradea | 1,499.94 mi (2,413.92 km) |
| Montalegre to Orastie | 1,559.24 mi (2,509.35 km) |
| Montalegre to Oravita | 1,487.19 mi (2,393.41 km) |
| Montalegre to Orsova | 1,522.91 mi (2,450.89 km) |
| Montalegre to Otelu Rosu | 1,518.76 mi (2,444.21 km) |
| Montalegre to Otopeni | 1,703.92 mi (2,742.19 km) |
| Montalegre to Ovidiu | 1,828.22 mi (2,942.24 km) |
