| Odenthal to Navodari | 1,097.02 mi (1,765.48 km) |
| Odenthal to Negresti-Oas | 762.58 mi (1,227.26 km) |
| Odenthal to Nehoiu | 963.34 mi (1,550.34 km) |
| Odenthal to Ocna Mures | 825.66 mi (1,328.78 km) |
| Odenthal to Odobesti | 981.00 mi (1,578.77 km) |
| Odenthal to Odorheiu Secuiesc | 888.58 mi (1,430.03 km) |
| Odenthal to Oltenita | 1,024.53 mi (1,648.83 km) |
| Odenthal to Onesti | 952.36 mi (1,532.67 km) |
| Odenthal to Oradea | 722.47 mi (1,162.71 km) |
| Odenthal to Orastie | 817.26 mi (1,315.25 km) |
| Odenthal to Oravita | 788.15 mi (1,268.40 km) |
| Odenthal to Orsova | 829.03 mi (1,334.20 km) |
| Odenthal to Otelu Rosu | 795.39 mi (1,280.05 km) |
| Odenthal to Otopeni | 983.35 mi (1,582.55 km) |
| Odenthal to Ovidiu | 1,096.71 mi (1,764.98 km) |
