| Boortmeerbeek to Navodari | 1,203.30 mi (1,936.52 km) |
| Boortmeerbeek to Negresti-Oas | 871.68 mi (1,402.83 km) |
| Boortmeerbeek to Nehoiu | 1,069.70 mi (1,721.52 km) |
| Boortmeerbeek to Ocna Mures | 932.22 mi (1,500.26 km) |
| Boortmeerbeek to Odobesti | 1,088.60 mi (1,751.94 km) |
| Boortmeerbeek to Odorheiu Secuiesc | 996.01 mi (1,602.93 km) |
| Boortmeerbeek to Oltenita | 1,128.69 mi (1,816.45 km) |
| Boortmeerbeek to Onesti | 1,060.56 mi (1,706.80 km) |
| Boortmeerbeek to Oradea | 829.02 mi (1,334.18 km) |
| Boortmeerbeek to Orastie | 921.94 mi (1,483.72 km) |
| Boortmeerbeek to Oravita | 888.52 mi (1,429.94 km) |
| Boortmeerbeek to Orsova | 929.55 mi (1,495.96 km) |
| Boortmeerbeek to Otelu Rosu | 898.19 mi (1,445.49 km) |
| Boortmeerbeek to Otopeni | 1,087.92 mi (1,750.83 km) |
| Boortmeerbeek to Ovidiu | 1,202.86 mi (1,935.82 km) |
