| Rio Rico to Octeville | 5,360.38 mi (8,626.70 km) |
| Rio Rico to Oignies | 5,492.44 mi (8,839.23 km) |
| Rio Rico to Oissel | 5,471.75 mi (8,805.93 km) |
| Rio Rico to Olivet | 5,562.55 mi (8,952.07 km) |
| Rio Rico to Ollioules | 5,915.84 mi (9,520.63 km) |
| Rio Rico to Olonne-sur-Mer | 5,477.20 mi (8,814.71 km) |
| Rio Rico to Oloron-Sainte-Marie | 5,657.98 mi (9,105.63 km) |
| Rio Rico to Onet Village | 5,736.47 mi (9,231.96 km) |
| Rio Rico to Onnaing | 5,516.91 mi (8,878.61 km) |
| Rio Rico to Orange | 5,831.79 mi (9,385.36 km) |
| Rio Rico to Orchies | 5,500.93 mi (8,852.89 km) |
| Rio Rico to Orleans | 5,561.25 mi (8,949.97 km) |
| Rio Rico to Orly | 5,543.69 mi (8,921.70 km) |
| Rio Rico to Ormesson-sur-Marne | 5,547.19 mi (8,927.33 km) |
| Rio Rico to Orsay | 5,538.17 mi (8,912.82 km) |
