| Ovidiu to Octeville | 1,461.03 mi (2,351.30 km) |
| Ovidiu to Oignies | 1,263.13 mi (2,032.82 km) |
| Ovidiu to Oissel | 1,337.24 mi (2,152.08 km) |
| Ovidiu to Olivet | 1,295.11 mi (2,084.27 km) |
| Ovidiu to Ollioules | 1,133.53 mi (1,824.25 km) |
| Ovidiu to Olonne-sur-Mer | 1,470.64 mi (2,366.76 km) |
| Ovidiu to Oloron-Sainte-Marie | 1,450.38 mi (2,334.16 km) |
| Ovidiu to Onet Village | 1,278.24 mi (2,057.13 km) |
| Ovidiu to Onnaing | 1,235.95 mi (1,989.07 km) |
| Ovidiu to Orange | 1,172.27 mi (1,886.58 km) |
| Ovidiu to Orchies | 1,252.35 mi (2,015.46 km) |
| Ovidiu to Orleans | 1,294.77 mi (2,083.74 km) |
| Ovidiu to Orly | 1,275.29 mi (2,052.38 km) |
| Ovidiu to Ormesson-sur-Marne | 1,268.89 mi (2,042.09 km) |
| Ovidiu to Orsay | 1,284.40 mi (2,067.05 km) |
