| Oakville to Olivares | 4,410.40 mi (7,097.85 km) |
| Oakville to Olivenza | 4,322.39 mi (6,956.21 km) |
| Oakville to Olot | 4,636.29 mi (7,461.38 km) |
| Oakville to Onate | 4,391.49 mi (7,067.42 km) |
| Oakville to Onda | 4,594.53 mi (7,394.19 km) |
| Oakville to Onteniente | 4,620.04 mi (7,435.24 km) |
| Oakville to Orihuela | 4,631.12 mi (7,453.06 km) |
| Oakville to Osuna | 4,466.69 mi (7,188.44 km) |
| Oakville to Ourense | 4,169.45 mi (6,710.08 km) |
| Oakville to Oviedo | 4,228.57 mi (6,805.22 km) |
| Oakville to Paiporta | 4,606.78 mi (7,413.90 km) |
| Oakville to Pajara | 4,328.62 mi (6,966.24 km) |
| Oakville to Palafolls | 4,666.49 mi (7,509.99 km) |
| Oakville to Palafrugell | 4,675.31 mi (7,524.18 km) |
| Oakville to Palamos | 4,676.46 mi (7,526.04 km) |
