| Thornton to Cortona | 960.25 mi (1,545.37 km) |
| Thornton to Cosenza | 1,312.15 mi (2,111.70 km) |
| Thornton to Cossato | 722.01 mi (1,161.97 km) |
| Thornton to Costa Volpino | 763.75 mi (1,229.14 km) |
| Thornton to Creazzo | 822.77 mi (1,324.11 km) |
| Thornton to Crema | 776.34 mi (1,249.40 km) |
| Thornton to Cremona | 799.49 mi (1,286.65 km) |
| Thornton to Crevalcore | 855.72 mi (1,377.15 km) |
| Thornton to Crispiano | 1,270.15 mi (2,044.11 km) |
| Thornton to Crosia | 1,312.79 mi (2,112.74 km) |
| Thornton to Crotone | 1,350.87 mi (2,174.01 km) |
| Thornton to Cuneo | 775.29 mi (1,247.72 km) |
| Thornton to Cuorgne | 718.34 mi (1,156.05 km) |
| Thornton to Cusano Milanino | 751.63 mi (1,209.63 km) |
| Thornton to Cutro | 1,349.61 mi (2,171.99 km) |
