| Bacau to Octeville | 1,326.11 mi (2,134.17 km) |
| Bacau to Oignies | 1,121.79 mi (1,805.34 km) |
| Bacau to Oissel | 1,203.85 mi (1,937.41 km) |
| Bacau to Olivet | 1,172.03 mi (1,886.20 km) |
| Bacau to Ollioules | 1,055.52 mi (1,698.70 km) |
| Bacau to Olonne-sur-Mer | 1,355.41 mi (2,181.33 km) |
| Bacau to Oloron-Sainte-Marie | 1,360.31 mi (2,189.20 km) |
| Bacau to Onet Village | 1,183.58 mi (1,904.79 km) |
| Bacau to Onnaing | 1,094.81 mi (1,761.93 km) |
| Bacau to Orange | 1,082.78 mi (1,742.56 km) |
| Bacau to Orchies | 1,110.84 mi (1,787.72 km) |
| Bacau to Orleans | 1,171.41 mi (1,885.20 km) |
| Bacau to Orly | 1,145.83 mi (1,844.04 km) |
| Bacau to Ormesson-sur-Marne | 1,139.13 mi (1,833.25 km) |
| Bacau to Orsay | 1,155.29 mi (1,859.26 km) |
