| Odense to Navodari | 1,109.29 mi (1,785.24 km) |
| Odense to Negresti-Oas | 761.27 mi (1,225.14 km) |
| Odense to Nehoiu | 982.21 mi (1,580.71 km) |
| Odense to Ocna Mures | 852.64 mi (1,372.19 km) |
| Odense to Odobesti | 984.34 mi (1,584.15 km) |
| Odense to Odorheiu Secuiesc | 900.30 mi (1,448.89 km) |
| Odense to Oltenita | 1,061.12 mi (1,707.71 km) |
| Odense to Onesti | 949.52 mi (1,528.10 km) |
| Odense to Oradea | 759.39 mi (1,222.13 km) |
| Odense to Orastie | 863.49 mi (1,389.65 km) |
| Odense to Oravita | 870.21 mi (1,400.47 km) |
| Odense to Orsova | 906.80 mi (1,459.35 km) |
| Odense to Otelu Rosu | 859.31 mi (1,382.92 km) |
| Odense to Otopeni | 1,018.70 mi (1,639.43 km) |
| Odense to Ovidiu | 1,110.31 mi (1,786.88 km) |
