| Olean to Octeville | 3,568.72 mi (5,743.30 km) |
| Olean to Oignies | 3,733.23 mi (6,008.05 km) |
| Olean to Oissel | 3,689.00 mi (5,936.87 km) |
| Olean to Olivet | 3,766.09 mi (6,060.94 km) |
| Olean to Ollioules | 4,089.38 mi (6,581.22 km) |
| Olean to Olonne-sur-Mer | 3,649.93 mi (5,874.00 km) |
| Olean to Oloron-Sainte-Marie | 3,803.70 mi (6,121.46 km) |
| Olean to Onet Village | 3,906.38 mi (6,286.71 km) |
| Olean to Onnaing | 3,759.70 mi (6,050.66 km) |
| Olean to Orange | 4,009.85 mi (6,453.22 km) |
| Olean to Orchies | 3,743.05 mi (6,023.86 km) |
| Olean to Orleans | 3,765.27 mi (6,059.62 km) |
| Olean to Orly | 3,759.91 mi (6,051.00 km) |
| Olean to Ormesson-sur-Marne | 3,764.62 mi (6,058.58 km) |
| Olean to Orsay | 3,752.85 mi (6,039.63 km) |
