| Security-Widefield to Cortona | 5,526.39 mi (8,893.87 km) |
| Security-Widefield to Cosenza | 5,877.81 mi (9,459.42 km) |
| Security-Widefield to Cossato | 5,280.73 mi (8,498.52 km) |
| Security-Widefield to Costa Volpino | 5,336.63 mi (8,588.48 km) |
| Security-Widefield to Creazzo | 5,399.01 mi (8,688.87 km) |
| Security-Widefield to Crema | 5,344.03 mi (8,600.39 km) |
| Security-Widefield to Cremona | 5,367.48 mi (8,638.13 km) |
| Security-Widefield to Crevalcore | 5,426.80 mi (8,733.59 km) |
| Security-Widefield to Crispiano | 5,845.76 mi (9,407.83 km) |
| Security-Widefield to Crosia | 5,882.57 mi (9,467.09 km) |
| Security-Widefield to Crotone | 5,919.95 mi (9,527.24 km) |
| Security-Widefield to Cuneo | 5,313.41 mi (8,551.11 km) |
| Security-Widefield to Cuorgne | 5,270.39 mi (8,481.88 km) |
| Security-Widefield to Cusano Milanino | 5,317.69 mi (8,557.99 km) |
| Security-Widefield to Cutro | 5,917.77 mi (9,523.72 km) |
