| Great Falls to Cortona | 5,277.36 mi (8,493.09 km) |
| Great Falls to Cosenza | 5,628.79 mi (9,058.66 km) |
| Great Falls to Cossato | 5,037.75 mi (8,107.48 km) |
| Great Falls to Costa Volpino | 5,080.01 mi (8,175.49 km) |
| Great Falls to Creazzo | 5,136.31 mi (8,266.09 km) |
| Great Falls to Crema | 5,093.49 mi (8,197.18 km) |
| Great Falls to Cremona | 5,116.61 mi (8,234.39 km) |
| Great Falls to Crevalcore | 5,172.26 mi (8,323.95 km) |
| Great Falls to Crispiano | 5,581.15 mi (8,981.99 km) |
| Great Falls to Crosia | 5,628.16 mi (9,057.64 km) |
| Great Falls to Crotone | 5,666.38 mi (9,119.16 km) |
| Great Falls to Cuneo | 5,083.58 mi (8,181.24 km) |
| Great Falls to Cuorgne | 5,031.92 mi (8,098.10 km) |
| Great Falls to Cusano Milanino | 5,068.74 mi (8,157.34 km) |
| Great Falls to Cutro | 5,665.47 mi (9,117.70 km) |
