| Cerkes to Orbetello | 1,122.15 mi (1,805.92 km) |
| Cerkes to Oria | 799.02 mi (1,285.90 km) |
| Cerkes to Oristano | 1,276.76 mi (2,054.74 km) |
| Cerkes to Orta Nova | 894.09 mi (1,438.90 km) |
| Cerkes to Orte | 1,062.30 mi (1,709.61 km) |
| Cerkes to Ortona | 959.60 mi (1,544.33 km) |
| Cerkes to Orvieto | 1,076.20 mi (1,731.98 km) |
| Cerkes to Orzinuovi | 1,196.03 mi (1,924.82 km) |
| Cerkes to Osimo | 1,008.71 mi (1,623.37 km) |
| Cerkes to Ospitaletto | 1,190.71 mi (1,916.26 km) |
| Cerkes to Ostuni | 799.95 mi (1,287.40 km) |
| Cerkes to Ottaviano | 960.84 mi (1,546.31 km) |
| Cerkes to Ovada | 1,253.65 mi (2,017.55 km) |
| Cerkes to Ozieri | 1,247.50 mi (2,007.65 km) |
| Cerkes to Paceco | 1,100.89 mi (1,771.72 km) |
