| Oakville to Opwijk | 4,395.91 mi (7,074.53 km) |
| Oakville to Ostend | 4,339.25 mi (6,983.35 km) |
| Oakville to Oud-Heverlee | 4,418.78 mi (7,111.34 km) |
| Oakville to Oud-Turnhout | 4,414.16 mi (7,103.90 km) |
| Oakville to Oudenaarde | 4,377.66 mi (7,045.17 km) |
| Oakville to Oudenburg | 4,343.72 mi (6,990.53 km) |
| Oakville to Oupeye | 4,460.03 mi (7,177.73 km) |
| Oakville to Overijse | 4,415.43 mi (7,105.95 km) |
| Oakville to Overpelt | 4,433.84 mi (7,135.58 km) |
| Oakville to Paal | 4,430.81 mi (7,130.71 km) |
| Oakville to Peer | 4,438.13 mi (7,142.48 km) |
| Oakville to Pepinster | 4,471.55 mi (7,196.26 km) |
| Oakville to Peruwelz | 4,388.23 mi (7,062.18 km) |
| Oakville to Perwez | 4,431.59 mi (7,131.96 km) |
| Oakville to Philippeville | 4,436.09 mi (7,139.20 km) |
