| Galveston to Cortona | 5,620.38 mi (9,045.12 km) |
| Galveston to Cosenza | 5,957.13 mi (9,587.07 km) |
| Galveston to Cossato | 5,377.25 mi (8,653.85 km) |
| Galveston to Costa Volpino | 5,448.68 mi (8,768.81 km) |
| Galveston to Creazzo | 5,516.45 mi (8,877.87 km) |
| Galveston to Crema | 5,447.76 mi (8,767.32 km) |
| Galveston to Cremona | 5,470.63 mi (8,804.14 km) |
| Galveston to Crevalcore | 5,532.27 mi (8,903.33 km) |
| Galveston to Crispiano | 5,947.15 mi (9,571.01 km) |
| Galveston to Crosia | 5,968.87 mi (9,605.97 km) |
| Galveston to Crotone | 6,003.57 mi (9,661.82 km) |
| Galveston to Cuneo | 5,391.30 mi (8,676.46 km) |
| Galveston to Cuorgne | 5,361.46 mi (8,628.43 km) |
| Galveston to Cusano Milanino | 5,420.45 mi (8,723.37 km) |
| Galveston to Cutro | 5,999.78 mi (9,655.72 km) |
