| South San Francisco to Cocentaina | 5,999.37 mi (9,655.05 km) |
| South San Francisco to Coin | 5,941.47 mi (9,561.87 km) |
| South San Francisco to Colindres | 5,658.09 mi (9,105.82 km) |
| South San Francisco to Collado-Villalba | 5,774.29 mi (9,292.83 km) |
| South San Francisco to Colmenar Viejo | 5,781.93 mi (9,305.11 km) |
| South San Francisco to Colmenarejo | 5,777.55 mi (9,298.07 km) |
| South San Francisco to Conil de la Frontera | 5,908.60 mi (9,508.98 km) |
| South San Francisco to Consuegra | 5,847.04 mi (9,409.91 km) |
| South San Francisco to Corbera de Llobregat | 5,944.59 mi (9,566.89 km) |
| South San Francisco to Cordoba | 5,880.52 mi (9,463.78 km) |
| South San Francisco to Coria del Rio | 5,860.59 mi (9,431.71 km) |
| South San Francisco to Crevillente | 6,011.29 mi (9,674.23 km) |
| South San Francisco to Cuarte de Huerva | 5,837.75 mi (9,394.96 km) |
| South San Francisco to Cubellas | 5,946.60 mi (9,570.13 km) |
| South San Francisco to Cuellar | 5,725.36 mi (9,214.08 km) |
