| Portales to Nasaud | 5,944.98 mi (9,567.52 km) |
| Portales to Navodari | 6,231.68 mi (10,028.92 km) |
| Portales to Negresti-Oas | 5,884.33 mi (9,469.91 km) |
| Portales to Nehoiu | 6,105.28 mi (9,825.50 km) |
| Portales to Ocna Mures | 5,974.46 mi (9,614.97 km) |
| Portales to Odobesti | 6,106.52 mi (9,827.49 km) |
| Portales to Odorheiu Secuiesc | 6,023.37 mi (9,693.68 km) |
| Portales to Oltenita | 6,183.19 mi (9,950.88 km) |
| Portales to Onesti | 6,071.15 mi (9,770.57 km) |
| Portales to Oradea | 5,878.00 mi (9,459.73 km) |
| Portales to Orastie | 5,981.44 mi (9,626.20 km) |
| Portales to Oravita | 5,973.50 mi (9,613.42 km) |
| Portales to Orsova | 6,013.05 mi (9,677.07 km) |
| Portales to Otelu Rosu | 5,971.08 mi (9,609.52 km) |
| Portales to Otopeni | 6,140.67 mi (9,882.45 km) |
