| Holyhead to Cortona | 1,027.12 mi (1,652.98 km) |
| Holyhead to Cosenza | 1,379.64 mi (2,220.32 km) |
| Holyhead to Cossato | 783.28 mi (1,260.56 km) |
| Holyhead to Costa Volpino | 835.58 mi (1,344.73 km) |
| Holyhead to Creazzo | 898.45 mi (1,445.92 km) |
| Holyhead to Crema | 843.77 mi (1,357.91 km) |
| Holyhead to Cremona | 867.20 mi (1,395.62 km) |
| Holyhead to Crevalcore | 925.96 mi (1,490.19 km) |
| Holyhead to Crispiano | 1,344.71 mi (2,164.10 km) |
| Holyhead to Crosia | 1,382.72 mi (2,225.27 km) |
| Holyhead to Crotone | 1,420.41 mi (2,285.93 km) |
| Holyhead to Cuneo | 826.72 mi (1,330.48 km) |
| Holyhead to Cuorgne | 775.82 mi (1,248.57 km) |
| Holyhead to Cusano Milanino | 817.80 mi (1,316.12 km) |
| Holyhead to Cutro | 1,418.59 mi (2,283.00 km) |
