| Opera to Corato | 464.62 mi (747.73 km) |
| Opera to Corbetta | 15.65 mi (25.18 km) |
| Opera to Corciano | 217.21 mi (349.57 km) |
| Opera to Cordenons | 173.16 mi (278.67 km) |
| Opera to Cori | 317.77 mi (511.40 km) |
| Opera to Coriano | 192.88 mi (310.41 km) |
| Opera to Corigliano Calabro | 545.43 mi (877.79 km) |
| Opera to Corleone | 563.57 mi (906.97 km) |
| Opera to Cormano | 11.77 mi (18.94 km) |
| Opera to Cornaredo | 12.00 mi (19.32 km) |
| Opera to Cornate d'Adda | 22.05 mi (35.48 km) |
| Opera to Cornedo Vicentino | 104.56 mi (168.27 km) |
| Opera to Correggio | 87.34 mi (140.55 km) |
| Opera to Corridonia | 258.62 mi (416.20 km) |
| Opera to Corsico | 5.96 mi (9.58 km) |
