| Mogadouro to Navodari | 1,788.17 mi (2,877.79 km) |
| Mogadouro to Negresti-Oas | 1,538.84 mi (2,476.52 km) |
| Mogadouro to Nehoiu | 1,670.30 mi (2,688.09 km) |
| Mogadouro to Ocna Mures | 1,552.41 mi (2,498.36 km) |
| Mogadouro to Odobesti | 1,706.10 mi (2,745.70 km) |
| Mogadouro to Odorheiu Secuiesc | 1,621.03 mi (2,608.80 km) |
| Mogadouro to Oltenita | 1,692.30 mi (2,723.49 km) |
| Mogadouro to Onesti | 1,691.10 mi (2,721.56 km) |
| Mogadouro to Oradea | 1,463.66 mi (2,355.53 km) |
| Mogadouro to Orastie | 1,519.85 mi (2,445.96 km) |
| Mogadouro to Oravita | 1,445.84 mi (2,326.86 km) |
| Mogadouro to Orsova | 1,480.84 mi (2,383.19 km) |
| Mogadouro to Otelu Rosu | 1,478.58 mi (2,379.54 km) |
| Mogadouro to Otopeni | 1,661.81 mi (2,674.43 km) |
| Mogadouro to Ovidiu | 1,785.91 mi (2,874.15 km) |
