| Corvallis to Olivares | 5,548.52 mi (8,929.48 km) |
| Corvallis to Olivenza | 5,448.20 mi (8,768.03 km) |
| Corvallis to Olot | 5,571.48 mi (8,966.43 km) |
| Corvallis to Onate | 5,373.55 mi (8,647.90 km) |
| Corvallis to Onda | 5,609.35 mi (9,027.37 km) |
| Corvallis to Onteniente | 5,660.98 mi (9,110.47 km) |
| Corvallis to Orihuela | 5,690.30 mi (9,157.65 km) |
| Corvallis to Osuna | 5,595.16 mi (9,004.54 km) |
| Corvallis to Ourense | 5,231.85 mi (8,419.86 km) |
| Corvallis to Oviedo | 5,245.87 mi (8,442.41 km) |
| Corvallis to Paiporta | 5,633.81 mi (9,066.73 km) |
| Corvallis to Pajara | 5,713.13 mi (9,194.39 km) |
| Corvallis to Palafolls | 5,608.10 mi (9,025.36 km) |
| Corvallis to Palafrugell | 5,606.51 mi (9,022.80 km) |
| Corvallis to Palamos | 5,609.51 mi (9,027.64 km) |
