| Amposta to Nasaud | 1,262.15 mi (2,031.23 km) |
| Amposta to Navodari | 1,441.97 mi (2,320.62 km) |
| Amposta to Negresti-Oas | 1,227.35 mi (1,975.23 km) |
| Amposta to Nehoiu | 1,331.99 mi (2,143.63 km) |
| Amposta to Ocna Mures | 1,224.70 mi (1,970.97 km) |
| Amposta to Odobesti | 1,371.20 mi (2,206.73 km) |
| Amposta to Odorheiu Secuiesc | 1,291.68 mi (2,078.75 km) |
| Amposta to Oltenita | 1,343.92 mi (2,162.83 km) |
| Amposta to Onesti | 1,360.60 mi (2,189.68 km) |
| Amposta to Oradea | 1,145.25 mi (1,843.10 km) |
| Amposta to Orastie | 1,187.21 mi (1,910.63 km) |
| Amposta to Oravita | 1,106.10 mi (1,780.09 km) |
| Amposta to Orsova | 1,137.83 mi (1,831.16 km) |
| Amposta to Otelu Rosu | 1,143.17 mi (1,839.76 km) |
| Amposta to Otopeni | 1,316.92 mi (2,119.38 km) |
