| Laeken to Navodari | 1,210.64 mi (1,948.34 km) |
| Laeken to Negresti-Oas | 879.97 mi (1,416.17 km) |
| Laeken to Nehoiu | 1,077.09 mi (1,733.41 km) |
| Laeken to Ocna Mures | 939.68 mi (1,512.27 km) |
| Laeken to Odobesti | 1,096.35 mi (1,764.40 km) |
| Laeken to Odorheiu Secuiesc | 1,003.72 mi (1,615.33 km) |
| Laeken to Oltenita | 1,135.50 mi (1,827.42 km) |
| Laeken to Onesti | 1,068.50 mi (1,719.58 km) |
| Laeken to Oradea | 836.51 mi (1,346.24 km) |
| Laeken to Orastie | 928.93 mi (1,494.97 km) |
| Laeken to Oravita | 894.58 mi (1,439.69 km) |
| Laeken to Orsova | 935.62 mi (1,505.73 km) |
| Laeken to Otelu Rosu | 904.75 mi (1,456.05 km) |
| Laeken to Otopeni | 1,094.84 mi (1,761.97 km) |
| Laeken to Ovidiu | 1,210.17 mi (1,947.58 km) |
