| Montemor-o-Velho to Navodari | 1,912.34 mi (3,077.62 km) |
| Montemor-o-Velho to Negresti-Oas | 1,667.69 mi (2,683.88 km) |
| Montemor-o-Velho to Nehoiu | 1,795.91 mi (2,890.23 km) |
| Montemor-o-Velho to Ocna Mures | 1,679.51 mi (2,702.91 km) |
| Montemor-o-Velho to Odobesti | 1,832.32 mi (2,948.83 km) |
| Montemor-o-Velho to Odorheiu Secuiesc | 1,747.99 mi (2,813.12 km) |
| Montemor-o-Velho to Oltenita | 1,815.88 mi (2,922.38 km) |
| Montemor-o-Velho to Onesti | 1,817.97 mi (2,925.74 km) |
| Montemor-o-Velho to Oradea | 1,591.75 mi (2,561.68 km) |
| Montemor-o-Velho to Orastie | 1,646.20 mi (2,649.31 km) |
| Montemor-o-Velho to Oravita | 1,570.90 mi (2,528.12 km) |
| Montemor-o-Velho to Orsova | 1,605.33 mi (2,583.53 km) |
| Montemor-o-Velho to Otelu Rosu | 1,604.44 mi (2,582.09 km) |
| Montemor-o-Velho to Otopeni | 1,786.14 mi (2,874.51 km) |
| Montemor-o-Velho to Ovidiu | 1,910.00 mi (3,073.85 km) |
