| Matosinhos to Navodari | 1,888.99 mi (3,040.03 km) |
| Matosinhos to Negresti-Oas | 1,635.15 mi (2,631.51 km) |
| Matosinhos to Nehoiu | 1,770.20 mi (2,848.85 km) |
| Matosinhos to Ocna Mures | 1,651.03 mi (2,657.07 km) |
| Matosinhos to Odobesti | 1,805.49 mi (2,905.65 km) |
| Matosinhos to Odorheiu Secuiesc | 1,719.77 mi (2,767.71 km) |
| Matosinhos to Oltenita | 1,793.46 mi (2,886.29 km) |
| Matosinhos to Onesti | 1,789.90 mi (2,880.56 km) |
| Matosinhos to Oradea | 1,561.15 mi (2,512.42 km) |
| Matosinhos to Orastie | 1,619.19 mi (2,605.84 km) |
| Matosinhos to Oravita | 1,546.20 mi (2,488.38 km) |
| Matosinhos to Orsova | 1,581.56 mi (2,545.28 km) |
| Matosinhos to Otelu Rosu | 1,578.34 mi (2,540.10 km) |
| Matosinhos to Otopeni | 1,762.57 mi (2,836.58 km) |
| Matosinhos to Ovidiu | 1,886.78 mi (3,036.48 km) |
