| Arcos de Valdevez to Navodari | 1,860.58 mi (2,994.31 km) |
| Arcos de Valdevez to Negresti-Oas | 1,601.57 mi (2,577.48 km) |
| Arcos de Valdevez to Nehoiu | 1,740.47 mi (2,801.01 km) |
| Arcos de Valdevez to Ocna Mures | 1,619.77 mi (2,606.76 km) |
| Arcos de Valdevez to Odobesti | 1,775.09 mi (2,856.72 km) |
| Arcos de Valdevez to Odorheiu Secuiesc | 1,688.62 mi (2,717.56 km) |
| Arcos de Valdevez to Oltenita | 1,765.67 mi (2,841.56 km) |
| Arcos de Valdevez to Onesti | 1,758.78 mi (2,830.48 km) |
| Arcos de Valdevez to Oradea | 1,528.73 mi (2,460.25 km) |
| Arcos de Valdevez to Orastie | 1,588.81 mi (2,556.95 km) |
| Arcos de Valdevez to Oravita | 1,517.25 mi (2,441.78 km) |
| Arcos de Valdevez to Orsova | 1,553.13 mi (2,499.51 km) |
| Arcos de Valdevez to Otelu Rosu | 1,548.53 mi (2,492.13 km) |
| Arcos de Valdevez to Otopeni | 1,734.11 mi (2,790.79 km) |
| Arcos de Valdevez to Ovidiu | 1,858.45 mi (2,990.88 km) |
