| Opera to Castelletto sopra Ticino | 36.43 mi (58.64 km) |
| Opera to Castelli Calepio | 37.32 mi (60.07 km) |
| Opera to Castelnovo ne' Monti | 87.53 mi (140.86 km) |
| Opera to Castelnuovo Berardenga | 180.42 mi (290.35 km) |
| Opera to Castelnuovo di Porto | 277.92 mi (447.27 km) |
| Opera to Castelnuovo di Verona | 75.26 mi (121.13 km) |
| Opera to Castelnuovo Rangone | 101.76 mi (163.77 km) |
| Opera to Castelvetrano | 563.10 mi (906.22 km) |
| Opera to Castelvetro di Modena | 104.45 mi (168.09 km) |
| Opera to Castenaso | 125.66 mi (202.23 km) |
| Opera to Castenedolo | 52.71 mi (84.84 km) |
| Opera to Castiglion Fiorentino | 194.07 mi (312.32 km) |
| Opera to Castiglione del Lago | 208.97 mi (336.30 km) |
| Opera to Castiglione delle Stiviere | 62.28 mi (100.23 km) |
| Opera to Castrolibero | 549.88 mi (884.94 km) |
