| Seal Beach to Cortona | 6,252.81 mi (10,062.93 km) |
| Seal Beach to Cosenza | 6,605.39 mi (10,630.35 km) |
| Seal Beach to Cossato | 6,009.78 mi (9,671.80 km) |
| Seal Beach to Costa Volpino | 6,057.95 mi (9,749.33 km) |
| Seal Beach to Creazzo | 6,116.87 mi (9,844.16 km) |
| Seal Beach to Crema | 6,068.95 mi (9,767.03 km) |
| Seal Beach to Cremona | 6,092.29 mi (9,804.59 km) |
| Seal Beach to Crevalcore | 6,149.66 mi (9,896.91 km) |
| Seal Beach to Crispiano | 6,563.88 mi (10,563.54 km) |
| Seal Beach to Crosia | 6,606.99 mi (10,632.93 km) |
| Seal Beach to Crotone | 6,644.99 mi (10,694.08 km) |
| Seal Beach to Cuneo | 6,049.86 mi (9,736.31 km) |
| Seal Beach to Cuorgne | 6,001.94 mi (9,659.19 km) |
| Seal Beach to Cusano Milanino | 6,043.44 mi (9,725.98 km) |
| Seal Beach to Cutro | 6,643.56 mi (10,691.77 km) |
