| Opera to Chivasso | 65.98 mi (106.18 km) |
| Opera to Ciampino | 299.87 mi (482.60 km) |
| Opera to Cicciano | 405.87 mi (653.19 km) |
| Opera to Cingoli | 241.69 mi (388.96 km) |
| Opera to Cinisello Balsamo | 11.52 mi (18.54 km) |
| Opera to Cinisi | 537.10 mi (864.37 km) |
| Opera to Cirie | 79.21 mi (127.47 km) |
| Opera to Ciro Marina | 578.85 mi (931.57 km) |
| Opera to Cislago | 22.05 mi (35.48 km) |
| Opera to Cisterna di Latina | 318.42 mi (512.45 km) |
| Opera to Cisternino | 524.22 mi (843.65 km) |
| Opera to Citta di Castello | 199.87 mi (321.66 km) |
| Opera to Citta Sant'Angelo | 311.40 mi (501.15 km) |
| Opera to Cittadella | 125.61 mi (202.15 km) |
| Opera to Cittanova | 600.32 mi (966.12 km) |
