| Cervia to Octeville | 755.69 mi (1,216.17 km) |
| Cervia to Oignies | 612.39 mi (985.55 km) |
| Cervia to Oissel | 637.10 mi (1,025.32 km) |
| Cervia to Olivet | 559.10 mi (899.79 km) |
| Cervia to Ollioules | 334.11 mi (537.70 km) |
| Cervia to Olonne-sur-Mer | 702.26 mi (1,130.18 km) |
| Cervia to Oloron-Sainte-Marie | 650.69 mi (1,047.19 km) |
| Cervia to Onet Village | 482.41 mi (776.36 km) |
| Cervia to Onnaing | 588.79 mi (947.57 km) |
| Cervia to Orange | 373.76 mi (601.50 km) |
| Cervia to Orchies | 604.37 mi (972.63 km) |
| Cervia to Orleans | 559.77 mi (900.87 km) |
| Cervia to Orly | 565.48 mi (910.05 km) |
| Cervia to Ormesson-sur-Marne | 561.17 mi (903.12 km) |
| Cervia to Orsay | 572.12 mi (920.74 km) |
