| Siracusa to Octeville | 1,209.67 mi (1,946.78 km) |
| Siracusa to Oignies | 1,107.39 mi (1,782.17 km) |
| Siracusa to Oissel | 1,105.36 mi (1,778.90 km) |
| Siracusa to Olivet | 1,007.97 mi (1,622.17 km) |
| Siracusa to Ollioules | 651.04 mi (1,047.75 km) |
| Siracusa to Olonne-sur-Mer | 1,091.53 mi (1,756.64 km) |
| Siracusa to Oloron-Sainte-Marie | 938.13 mi (1,509.77 km) |
| Siracusa to Onet Village | 832.68 mi (1,340.07 km) |
| Siracusa to Onnaing | 1,086.79 mi (1,749.02 km) |
| Siracusa to Orange | 734.22 mi (1,181.61 km) |
| Siracusa to Orchies | 1,100.96 mi (1,771.82 km) |
| Siracusa to Orleans | 1,009.50 mi (1,624.63 km) |
| Siracusa to Orly | 1,034.60 mi (1,665.03 km) |
| Siracusa to Ormesson-sur-Marne | 1,032.16 mi (1,661.10 km) |
| Siracusa to Orsay | 1,038.80 mi (1,671.79 km) |
