| Fort Thomas to Cortona | 4,723.28 mi (7,601.39 km) |
| Fort Thomas to Cosenza | 5,062.98 mi (8,148.08 km) |
| Fort Thomas to Cossato | 4,479.24 mi (7,208.64 km) |
| Fort Thomas to Costa Volpino | 4,549.21 mi (7,321.24 km) |
| Fort Thomas to Creazzo | 4,616.61 mi (7,429.72 km) |
| Fort Thomas to Crema | 4,549.12 mi (7,321.10 km) |
| Fort Thomas to Cremona | 4,572.11 mi (7,358.10 km) |
| Fort Thomas to Crevalcore | 4,633.64 mi (7,457.13 km) |
| Fort Thomas to Crispiano | 5,049.98 mi (8,127.16 km) |
| Fort Thomas to Crosia | 5,073.75 mi (8,165.40 km) |
| Fort Thomas to Crotone | 5,108.93 mi (8,222.03 km) |
| Fort Thomas to Cuneo | 4,495.68 mi (7,235.09 km) |
| Fort Thomas to Cuorgne | 4,464.04 mi (7,184.19 km) |
| Fort Thomas to Cusano Milanino | 4,521.85 mi (7,277.22 km) |
| Fort Thomas to Cutro | 5,105.36 mi (8,216.29 km) |
