| Antwerp to Navodari | 1,214.06 mi (1,953.85 km) |
| Antwerp to Negresti-Oas | 880.91 mi (1,417.69 km) |
| Antwerp to Nehoiu | 1,080.42 mi (1,738.76 km) |
| Antwerp to Ocna Mures | 942.83 mi (1,517.34 km) |
| Antwerp to Odobesti | 1,098.74 mi (1,768.25 km) |
| Antwerp to Odorheiu Secuiesc | 1,006.23 mi (1,619.37 km) |
| Antwerp to Oltenita | 1,140.24 mi (1,835.04 km) |
| Antwerp to Onesti | 1,070.37 mi (1,722.60 km) |
| Antwerp to Oradea | 839.62 mi (1,351.24 km) |
| Antwerp to Orastie | 933.28 mi (1,501.97 km) |
| Antwerp to Oravita | 901.11 mi (1,450.20 km) |
| Antwerp to Orsova | 942.11 mi (1,516.18 km) |
| Antwerp to Otelu Rosu | 910.12 mi (1,464.70 km) |
| Antwerp to Otopeni | 1,099.32 mi (1,769.19 km) |
| Antwerp to Ovidiu | 1,213.68 mi (1,953.23 km) |
