| Cincinnati to Cortona | 4,722.89 mi (7,600.75 km) |
| Cincinnati to Cosenza | 5,062.72 mi (8,147.65 km) |
| Cincinnati to Cossato | 4,478.80 mi (7,207.93 km) |
| Cincinnati to Costa Volpino | 4,548.68 mi (7,320.39 km) |
| Cincinnati to Creazzo | 4,616.06 mi (7,428.83 km) |
| Cincinnati to Crema | 4,548.64 mi (7,320.34 km) |
| Cincinnati to Cremona | 4,571.64 mi (7,357.35 km) |
| Cincinnati to Crevalcore | 4,633.16 mi (7,456.36 km) |
| Cincinnati to Crispiano | 5,049.58 mi (8,126.51 km) |
| Cincinnati to Crosia | 5,073.44 mi (8,164.91 km) |
| Cincinnati to Crotone | 5,108.64 mi (8,221.57 km) |
| Cincinnati to Cuneo | 4,495.36 mi (7,234.58 km) |
| Cincinnati to Cuorgne | 4,463.64 mi (7,183.53 km) |
| Cincinnati to Cusano Milanino | 4,521.38 mi (7,276.46 km) |
| Cincinnati to Cutro | 5,105.09 mi (8,215.84 km) |
