| San Vicente de Castellet to Orbetello | 482.33 mi (776.24 km) |
| San Vicente de Castellet to Oria | 824.03 mi (1,326.15 km) |
| San Vicente de Castellet to Oristano | 372.23 mi (599.05 km) |
| San Vicente de Castellet to Orta Nova | 716.19 mi (1,152.60 km) |
| San Vicente de Castellet to Orte | 542.16 mi (872.53 km) |
| San Vicente de Castellet to Ortona | 644.74 mi (1,037.61 km) |
| San Vicente de Castellet to Orvieto | 529.20 mi (851.66 km) |
| San Vicente de Castellet to Orzinuovi | 479.18 mi (771.16 km) |
| San Vicente de Castellet to Osimo | 603.84 mi (971.79 km) |
| San Vicente de Castellet to Ospitaletto | 490.42 mi (789.25 km) |
| San Vicente de Castellet to Ostuni | 818.59 mi (1,317.39 km) |
| San Vicente de Castellet to Ottaviano | 656.98 mi (1,057.30 km) |
| San Vicente de Castellet to Ovada | 398.66 mi (641.58 km) |
| San Vicente de Castellet to Ozieri | 378.88 mi (609.74 km) |
| San Vicente de Castellet to Paceco | 620.92 mi (999.27 km) |
