| California to Cognac | 3,795.26 mi (6,107.89 km) |
| California to Cogolin | 4,172.66 mi (6,715.25 km) |
| California to Colmar | 4,066.00 mi (6,543.60 km) |
| California to Colombes | 3,827.95 mi (6,160.49 km) |
| California to Colomiers | 3,925.93 mi (6,318.17 km) |
| California to Combs-la-Ville | 3,847.29 mi (6,191.62 km) |
| California to Comines | 3,815.27 mi (6,140.08 km) |
| California to Compiegne | 3,840.02 mi (6,179.92 km) |
| California to Concarneau | 3,584.72 mi (5,769.05 km) |
| California to Conde-sur-l'Escaut | 3,846.71 mi (6,190.69 km) |
| California to Conflans-Sainte-Honorine | 3,819.57 mi (6,147.01 km) |
| California to Corbas | 4,028.75 mi (6,483.64 km) |
| California to Corbeil-Essonnes | 3,845.37 mi (6,188.52 km) |
| California to Cormeilles-en-Parisis | 3,824.56 mi (6,155.04 km) |
| California to Cosne sur Loire | 3,895.02 mi (6,268.42 km) |
