| Iona to Cortona | 5,172.29 mi (8,324.00 km) |
| Iona to Cosenza | 5,486.26 mi (8,829.28 km) |
| Iona to Cossato | 4,939.74 mi (7,949.75 km) |
| Iona to Costa Volpino | 5,021.22 mi (8,080.87 km) |
| Iona to Creazzo | 5,090.95 mi (8,193.10 km) |
| Iona to Crema | 5,013.56 mi (8,068.54 km) |
| Iona to Cremona | 5,035.15 mi (8,103.30 km) |
| Iona to Crevalcore | 5,096.48 mi (8,201.99 km) |
| Iona to Crispiano | 5,493.91 mi (8,841.59 km) |
| Iona to Crosia | 5,503.05 mi (8,856.30 km) |
| Iona to Crotone | 5,534.54 mi (8,906.98 km) |
| Iona to Cuneo | 4,938.36 mi (7,947.53 km) |
| Iona to Cuorgne | 4,920.12 mi (7,918.16 km) |
| Iona to Cusano Milanino | 4,986.45 mi (8,024.91 km) |
| Iona to Cutro | 5,529.62 mi (8,899.07 km) |
