| Cortona to Octeville | 781.49 mi (1,257.68 km) |
| Cortona to Oignies | 652.91 mi (1,050.75 km) |
| Cortona to Oissel | 666.82 mi (1,073.14 km) |
| Cortona to Olivet | 581.14 mi (935.25 km) |
| Cortona to Ollioules | 309.35 mi (497.85 km) |
| Cortona to Olonne-sur-Mer | 708.98 mi (1,141.00 km) |
| Cortona to Oloron-Sainte-Marie | 633.42 mi (1,019.39 km) |
| Cortona to Onet Village | 474.07 mi (762.95 km) |
| Cortona to Onnaing | 630.65 mi (1,014.94 km) |
| Cortona to Orange | 363.33 mi (584.73 km) |
| Cortona to Orchies | 645.61 mi (1,039.00 km) |
| Cortona to Orleans | 582.11 mi (936.82 km) |
| Cortona to Orly | 594.84 mi (957.30 km) |
| Cortona to Ormesson-sur-Marne | 591.20 mi (951.45 km) |
| Cortona to Orsay | 600.64 mi (966.63 km) |
