| Bilbao to Cortona | 749.24 mi (1,205.79 km) |
| Bilbao to Cosenza | 1,029.84 mi (1,657.37 km) |
| Bilbao to Cossato | 569.62 mi (916.71 km) |
| Bilbao to Costa Volpino | 664.63 mi (1,069.62 km) |
| Bilbao to Creazzo | 727.37 mi (1,170.59 km) |
| Bilbao to Crema | 639.37 mi (1,028.97 km) |
| Bilbao to Cremona | 654.06 mi (1,052.61 km) |
| Bilbao to Crevalcore | 705.96 mi (1,136.13 km) |
| Bilbao to Crispiano | 1,049.61 mi (1,689.18 km) |
| Bilbao to Crosia | 1,048.98 mi (1,688.16 km) |
| Bilbao to Crotone | 1,078.50 mi (1,735.67 km) |
| Bilbao to Cuneo | 527.52 mi (848.96 km) |
| Bilbao to Cuorgne | 542.56 mi (873.16 km) |
| Bilbao to Cusano Milanino | 617.59 mi (993.92 km) |
| Bilbao to Cutro | 1,073.13 mi (1,727.04 km) |
