| Friendswood to Cortona | 5,620.50 mi (9,045.32 km) |
| Friendswood to Cosenza | 5,957.93 mi (9,588.36 km) |
| Friendswood to Cossato | 5,377.12 mi (8,653.65 km) |
| Friendswood to Costa Volpino | 5,448.14 mi (8,767.93 km) |
| Friendswood to Creazzo | 5,515.79 mi (8,876.80 km) |
| Friendswood to Crema | 5,447.46 mi (8,766.85 km) |
| Friendswood to Cremona | 5,470.37 mi (8,803.71 km) |
| Friendswood to Crevalcore | 5,531.98 mi (8,902.86 km) |
| Friendswood to Crispiano | 5,947.28 mi (9,571.22 km) |
| Friendswood to Crosia | 5,969.47 mi (9,606.94 km) |
| Friendswood to Crotone | 6,004.28 mi (9,662.95 km) |
| Friendswood to Cuneo | 5,391.75 mi (8,677.18 km) |
| Friendswood to Cuorgne | 5,361.48 mi (8,628.48 km) |
| Friendswood to Cusano Milanino | 5,420.16 mi (8,722.91 km) |
| Friendswood to Cutro | 6,000.53 mi (9,656.93 km) |
