| San Sebastiano al Vesuvio to Octeville | 984.49 mi (1,584.38 km) |
| San Sebastiano al Vesuvio to Oignies | 861.12 mi (1,385.84 km) |
| San Sebastiano al Vesuvio to Oissel | 872.32 mi (1,403.86 km) |
| San Sebastiano al Vesuvio to Olivet | 782.80 mi (1,259.79 km) |
| San Sebastiano al Vesuvio to Ollioules | 465.40 mi (748.99 km) |
| San Sebastiano al Vesuvio to Olonne-sur-Mer | 895.26 mi (1,440.78 km) |
| San Sebastiano al Vesuvio to Oloron-Sainte-Marie | 784.64 mi (1,262.75 km) |
| San Sebastiano al Vesuvio to Onet Village | 645.85 mi (1,039.39 km) |
| San Sebastiano al Vesuvio to Onnaing | 838.86 mi (1,350.02 km) |
| San Sebastiano al Vesuvio to Orange | 537.39 mi (864.84 km) |
| San Sebastiano al Vesuvio to Orchies | 853.83 mi (1,374.11 km) |
| San Sebastiano al Vesuvio to Orleans | 783.96 mi (1,261.66 km) |
| San Sebastiano al Vesuvio to Orly | 800.44 mi (1,288.18 km) |
| San Sebastiano al Vesuvio to Ormesson-sur-Marne | 797.09 mi (1,282.80 km) |
| San Sebastiano al Vesuvio to Orsay | 805.83 mi (1,296.86 km) |
