| Bois-Guillaume to Navodari | 1,337.62 mi (2,152.69 km) |
| Bois-Guillaume to Negresti-Oas | 1,019.96 mi (1,641.46 km) |
| Bois-Guillaume to Nehoiu | 1,205.32 mi (1,939.78 km) |
| Bois-Guillaume to Ocna Mures | 1,069.74 mi (1,721.57 km) |
| Bois-Guillaume to Odobesti | 1,228.74 mi (1,977.47 km) |
| Bois-Guillaume to Odorheiu Secuiesc | 1,136.20 mi (1,828.53 km) |
| Bois-Guillaume to Oltenita | 1,256.41 mi (2,022.00 km) |
| Bois-Guillaume to Onesti | 1,203.37 mi (1,936.64 km) |
| Bois-Guillaume to Oradea | 967.66 mi (1,557.30 km) |
| Bois-Guillaume to Orastie | 1,053.39 mi (1,695.27 km) |
| Bois-Guillaume to Oravita | 1,008.15 mi (1,622.46 km) |
| Bois-Guillaume to Orsova | 1,048.92 mi (1,688.07 km) |
| Bois-Guillaume to Otelu Rosu | 1,024.31 mi (1,648.47 km) |
| Bois-Guillaume to Otopeni | 1,217.30 mi (1,959.05 km) |
| Bois-Guillaume to Ovidiu | 1,336.74 mi (2,151.28 km) |
