| San Fernando to Orbetello | 1,014.00 mi (1,631.88 km) |
| San Fernando to Oria | 1,314.51 mi (2,115.49 km) |
| San Fernando to Oristano | 836.55 mi (1,346.30 km) |
| San Fernando to Orta Nova | 1,221.47 mi (1,965.76 km) |
| San Fernando to Orte | 1,071.54 mi (1,724.47 km) |
| San Fernando to Ortona | 1,168.81 mi (1,881.02 km) |
| San Fernando to Orvieto | 1,063.40 mi (1,711.38 km) |
| San Fernando to Orzinuovi | 1,040.89 mi (1,675.15 km) |
| San Fernando to Osimo | 1,145.66 mi (1,843.76 km) |
| San Fernando to Ospitaletto | 1,052.21 mi (1,693.37 km) |
| San Fernando to Ostuni | 1,313.27 mi (2,113.50 km) |
| San Fernando to Ottaviano | 1,152.94 mi (1,855.48 km) |
| San Fernando to Ovada | 959.98 mi (1,544.95 km) |
| San Fernando to Ozieri | 868.29 mi (1,397.37 km) |
| San Fernando to Paceco | 1,035.10 mi (1,665.84 km) |
