| Garden Grove to Cortona | 6,247.84 mi (10,054.93 km) |
| Garden Grove to Cosenza | 6,600.43 mi (10,622.36 km) |
| Garden Grove to Cossato | 6,004.76 mi (9,663.73 km) |
| Garden Grove to Costa Volpino | 6,053.03 mi (9,741.40 km) |
| Garden Grove to Creazzo | 6,111.99 mi (9,836.30 km) |
| Garden Grove to Crema | 6,063.99 mi (9,759.04 km) |
| Garden Grove to Cremona | 6,087.33 mi (9,796.61 km) |
| Garden Grove to Crevalcore | 6,144.72 mi (9,888.97 km) |
| Garden Grove to Crispiano | 6,559.02 mi (10,555.72 km) |
| Garden Grove to Crosia | 6,602.06 mi (10,624.99 km) |
| Garden Grove to Crotone | 6,640.06 mi (10,686.14 km) |
| Garden Grove to Cuneo | 6,044.77 mi (9,728.11 km) |
| Garden Grove to Cuorgne | 5,996.90 mi (9,651.08 km) |
| Garden Grove to Cusano Milanino | 6,038.47 mi (9,717.97 km) |
| Garden Grove to Cutro | 6,638.62 mi (10,683.82 km) |
