| Oakville to Octeville | 4,211.88 mi (6,778.37 km) |
| Oakville to Oignies | 4,367.16 mi (7,028.26 km) |
| Oakville to Oissel | 4,329.97 mi (6,968.41 km) |
| Oakville to Olivet | 4,411.52 mi (7,099.66 km) |
| Oakville to Ollioules | 4,744.45 mi (7,635.45 km) |
| Oakville to Olonne-sur-Mer | 4,303.94 mi (6,926.53 km) |
| Oakville to Oloron-Sainte-Marie | 4,465.49 mi (7,186.50 km) |
| Oakville to Onet Village | 4,561.93 mi (7,341.72 km) |
| Oakville to Onnaing | 4,393.15 mi (7,070.09 km) |
| Oakville to Orange | 4,663.44 mi (7,505.09 km) |
| Oakville to Orchies | 4,376.62 mi (7,043.49 km) |
| Oakville to Orleans | 4,410.56 mi (7,098.10 km) |
| Oakville to Orly | 4,401.51 mi (7,083.55 km) |
| Oakville to Ormesson-sur-Marne | 4,405.88 mi (7,090.57 km) |
| Oakville to Orsay | 4,394.89 mi (7,072.89 km) |
