| Oosterzele to Navodari | 1,235.36 mi (1,988.12 km) |
| Oosterzele to Negresti-Oas | 904.57 mi (1,455.77 km) |
| Oosterzele to Nehoiu | 1,101.81 mi (1,773.19 km) |
| Oosterzele to Ocna Mures | 964.40 mi (1,552.06 km) |
| Oosterzele to Odobesti | 1,121.05 mi (1,804.16 km) |
| Oosterzele to Odorheiu Secuiesc | 1,028.43 mi (1,655.10 km) |
| Oosterzele to Oltenita | 1,160.17 mi (1,867.11 km) |
| Oosterzele to Onesti | 1,093.18 mi (1,759.30 km) |
| Oosterzele to Oradea | 861.23 mi (1,386.02 km) |
| Oosterzele to Orastie | 953.62 mi (1,534.71 km) |
| Oosterzele to Oravita | 919.06 mi (1,479.08 km) |
| Oosterzele to Orsova | 960.09 mi (1,545.12 km) |
| Oosterzele to Otelu Rosu | 929.37 mi (1,495.67 km) |
| Oosterzele to Otopeni | 1,119.52 mi (1,801.69 km) |
| Oosterzele to Ovidiu | 1,234.89 mi (1,987.36 km) |
