| Certaldo to Octeville | 732.75 mi (1,179.25 km) |
| Certaldo to Oignies | 609.55 mi (980.97 km) |
| Certaldo to Oissel | 619.30 mi (996.66 km) |
| Certaldo to Olivet | 531.84 mi (855.91 km) |
| Certaldo to Ollioules | 262.48 mi (422.41 km) |
| Certaldo to Olonne-sur-Mer | 657.88 mi (1,058.76 km) |
| Certaldo to Oloron-Sainte-Marie | 585.05 mi (941.54 km) |
| Certaldo to Onet Village | 423.75 mi (681.96 km) |
| Certaldo to Onnaing | 588.02 mi (946.32 km) |
| Certaldo to Orange | 313.12 mi (503.92 km) |
| Certaldo to Orchies | 602.61 mi (969.81 km) |
| Certaldo to Orleans | 532.87 mi (857.57 km) |
| Certaldo to Orly | 547.37 mi (880.90 km) |
| Certaldo to Ormesson-sur-Marne | 543.94 mi (875.39 km) |
| Certaldo to Orsay | 552.90 mi (889.81 km) |
