| Colonia to Cortona | 4,228.78 mi (6,805.57 km) |
| Colonia to Cosenza | 4,561.91 mi (7,341.68 km) |
| Colonia to Cossato | 3,987.47 mi (6,417.21 km) |
| Colonia to Costa Volpino | 4,061.78 mi (6,536.81 km) |
| Colonia to Creazzo | 4,130.34 mi (6,647.14 km) |
| Colonia to Crema | 4,059.03 mi (6,532.38 km) |
| Colonia to Cremona | 4,081.65 mi (6,568.78 km) |
| Colonia to Crevalcore | 4,143.39 mi (6,668.14 km) |
| Colonia to Crispiano | 4,555.26 mi (7,330.98 km) |
| Colonia to Crosia | 4,574.53 mi (7,362.00 km) |
| Colonia to Crotone | 4,608.75 mi (7,417.06 km) |
| Colonia to Cuneo | 3,998.09 mi (6,434.30 km) |
| Colonia to Cuorgne | 3,970.70 mi (6,390.22 km) |
| Colonia to Cusano Milanino | 4,031.69 mi (6,488.38 km) |
| Colonia to Cutro | 4,604.76 mi (7,410.64 km) |
