| South San Francisco to Cognac | 5,648.75 mi (9,090.79 km) |
| South San Francisco to Cogolin | 5,996.22 mi (9,649.98 km) |
| South San Francisco to Colmar | 5,757.47 mi (9,265.76 km) |
| South San Francisco to Colombes | 5,563.91 mi (8,954.24 km) |
| South San Francisco to Colomiers | 5,810.40 mi (9,350.94 km) |
| South San Francisco to Combs-la-Ville | 5,586.32 mi (8,990.31 km) |
| South San Francisco to Comines | 5,490.48 mi (8,836.07 km) |
| South San Francisco to Compiegne | 5,555.31 mi (8,940.41 km) |
| South San Francisco to Concarneau | 5,422.52 mi (8,726.70 km) |
| South San Francisco to Conde-sur-l'Escaut | 5,523.49 mi (8,889.20 km) |
| South San Francisco to Conflans-Sainte-Honorine | 5,555.37 mi (8,940.51 km) |
| South San Francisco to Corbas | 5,815.75 mi (9,359.54 km) |
| South San Francisco to Corbeil-Essonnes | 5,586.90 mi (8,991.25 km) |
| South San Francisco to Cormeilles-en-Parisis | 5,559.78 mi (8,947.59 km) |
| South San Francisco to Cosne sur Loire | 5,663.15 mi (9,113.96 km) |
