| Ostbevern to Navodari | 1,089.78 mi (1,753.84 km) |
| Ostbevern to Negresti-Oas | 748.16 mi (1,204.05 km) |
| Ostbevern to Nehoiu | 956.39 mi (1,539.17 km) |
| Ostbevern to Ocna Mures | 818.94 mi (1,317.96 km) |
| Ostbevern to Odobesti | 970.59 mi (1,562.02 km) |
| Ostbevern to Odorheiu Secuiesc | 879.08 mi (1,414.74 km) |
| Ostbevern to Oltenita | 1,022.42 mi (1,645.42 km) |
| Ostbevern to Onesti | 940.21 mi (1,513.11 km) |
| Ostbevern to Oradea | 716.47 mi (1,153.05 km) |
| Ostbevern to Orastie | 815.08 mi (1,311.74 km) |
| Ostbevern to Oravita | 794.45 mi (1,278.54 km) |
| Ostbevern to Orsova | 834.82 mi (1,343.51 km) |
| Ostbevern to Otelu Rosu | 797.24 mi (1,283.04 km) |
| Ostbevern to Otopeni | 980.54 mi (1,578.02 km) |
| Ostbevern to Ovidiu | 1,089.78 mi (1,753.83 km) |
