| Corvallis to Octeville | 5,042.84 mi (8,115.67 km) |
| Corvallis to Oignies | 5,123.72 mi (8,245.82 km) |
| Corvallis to Oissel | 5,134.67 mi (8,263.45 km) |
| Corvallis to Olivet | 5,238.32 mi (8,430.26 km) |
| Corvallis to Ollioules | 5,614.97 mi (9,036.42 km) |
| Corvallis to Olonne-sur-Mer | 5,204.74 mi (8,376.22 km) |
| Corvallis to Oloron-Sainte-Marie | 5,421.32 mi (8,724.78 km) |
| Corvallis to Onet Village | 5,452.44 mi (8,774.85 km) |
| Corvallis to Onnaing | 5,144.05 mi (8,278.55 km) |
| Corvallis to Orange | 5,528.72 mi (8,897.62 km) |
| Corvallis to Orchies | 5,129.98 mi (8,255.90 km) |
| Corvallis to Orleans | 5,236.42 mi (8,427.21 km) |
| Corvallis to Orly | 5,203.21 mi (8,373.76 km) |
| Corvallis to Ormesson-sur-Marne | 5,204.85 mi (8,376.40 km) |
| Corvallis to Orsay | 5,200.14 mi (8,368.82 km) |
