| Cayirli to Orbetello | 1,503.92 mi (2,420.32 km) |
| Cayirli to Oria | 1,180.90 mi (1,900.47 km) |
| Cayirli to Oristano | 1,659.12 mi (2,670.09 km) |
| Cayirli to Orta Nova | 1,276.85 mi (2,054.89 km) |
| Cayirli to Orte | 1,444.08 mi (2,324.02 km) |
| Cayirli to Ortona | 1,341.59 mi (2,159.08 km) |
| Cayirli to Orvieto | 1,457.54 mi (2,345.68 km) |
| Cayirli to Orzinuovi | 1,568.97 mi (2,525.02 km) |
| Cayirli to Osimo | 1,388.18 mi (2,234.06 km) |
| Cayirli to Ospitaletto | 1,562.91 mi (2,515.26 km) |
| Cayirli to Ostuni | 1,182.21 mi (1,902.59 km) |
| Cayirli to Ottaviano | 1,343.43 mi (2,162.05 km) |
| Cayirli to Ovada | 1,629.83 mi (2,622.96 km) |
| Cayirli to Ozieri | 1,630.21 mi (2,623.57 km) |
| Cayirli to Paceco | 1,477.63 mi (2,378.01 km) |
