| Tucson to Cortona | 6,098.36 mi (9,814.37 km) |
| Tucson to Cosenza | 6,449.59 mi (10,379.62 km) |
| Tucson to Cossato | 5,852.61 mi (9,418.87 km) |
| Tucson to Costa Volpino | 5,908.88 mi (9,509.42 km) |
| Tucson to Creazzo | 5,971.35 mi (9,609.95 km) |
| Tucson to Crema | 5,916.13 mi (9,521.09 km) |
| Tucson to Cremona | 5,939.58 mi (9,558.83 km) |
| Tucson to Crevalcore | 5,998.97 mi (9,654.42 km) |
| Tucson to Crispiano | 6,418.02 mi (10,328.81 km) |
| Tucson to Crosia | 6,454.56 mi (10,387.61 km) |
| Tucson to Crotone | 6,491.89 mi (10,447.68 km) |
| Tucson to Cuneo | 5,884.67 mi (9,470.46 km) |
| Tucson to Cuorgne | 5,842.11 mi (9,401.96 km) |
| Tucson to Cusano Milanino | 5,889.75 mi (9,478.64 km) |
| Tucson to Cutro | 6,489.66 mi (10,444.10 km) |
