| Luxembourg to Navodari | 1,116.24 mi (1,796.42 km) |
| Luxembourg to Negresti-Oas | 795.24 mi (1,279.82 km) |
| Luxembourg to Nehoiu | 983.38 mi (1,582.59 km) |
| Luxembourg to Ocna Mures | 847.05 mi (1,363.20 km) |
| Luxembourg to Odobesti | 1,005.59 mi (1,618.34 km) |
| Luxembourg to Odorheiu Secuiesc | 912.93 mi (1,469.22 km) |
| Luxembourg to Oltenita | 1,037.31 mi (1,669.39 km) |
| Luxembourg to Onesti | 979.60 mi (1,576.52 km) |
| Luxembourg to Oradea | 744.52 mi (1,198.20 km) |
| Luxembourg to Orastie | 832.55 mi (1,339.85 km) |
| Luxembourg to Oravita | 792.03 mi (1,274.65 km) |
| Luxembourg to Orsova | 833.03 mi (1,340.63 km) |
| Luxembourg to Otelu Rosu | 805.40 mi (1,296.16 km) |
| Luxembourg to Otopeni | 997.49 mi (1,605.31 km) |
| Luxembourg to Ovidiu | 1,115.51 mi (1,795.24 km) |
