| Silale to Orbetello | 1,026.73 mi (1,652.37 km) |
| Silale to Oria | 1,055.84 mi (1,699.21 km) |
| Silale to Oristano | 1,243.19 mi (2,000.71 km) |
| Silale to Orta Nova | 1,020.82 mi (1,642.85 km) |
| Silale to Orte | 1,001.29 mi (1,611.42 km) |
| Silale to Ortona | 972.36 mi (1,564.86 km) |
| Silale to Orvieto | 990.41 mi (1,593.91 km) |
| Silale to Orzinuovi | 878.19 mi (1,413.32 km) |
| Silale to Osimo | 914.84 mi (1,472.29 km) |
| Silale to Ospitaletto | 865.50 mi (1,392.89 km) |
| Silale to Ostuni | 1,040.41 mi (1,674.38 km) |
| Silale to Ottaviano | 1,070.04 mi (1,722.06 km) |
| Silale to Ovada | 956.68 mi (1,539.62 km) |
| Silale to Ozieri | 1,191.49 mi (1,917.52 km) |
| Silale to Paceco | 1,289.46 mi (2,075.19 km) |
