| South San Francisco to Castrovillari | 6,476.37 mi (10,422.71 km) |
| South San Francisco to Catania | 6,580.25 mi (10,589.90 km) |
| South San Francisco to Catanzaro | 6,541.53 mi (10,527.58 km) |
| South San Francisco to Cattolica | 6,138.83 mi (9,879.50 km) |
| South San Francisco to Cava de' Tirreni | 6,382.62 mi (10,271.84 km) |
| South San Francisco to Cavallino | 6,501.11 mi (10,462.52 km) |
| South San Francisco to Cavarzere | 6,053.92 mi (9,742.84 km) |
| South San Francisco to Cave | 6,267.81 mi (10,087.07 km) |
| South San Francisco to Cavriago | 6,035.28 mi (9,712.85 km) |
| South San Francisco to Cavriglia | 6,129.27 mi (9,864.11 km) |
| South San Francisco to Cazzago San Martino | 5,971.36 mi (9,609.98 km) |
| South San Francisco to Ceccano | 6,293.63 mi (10,128.61 km) |
| South San Francisco to Cecina | 6,112.67 mi (9,837.39 km) |
| South San Francisco to Cefalu | 6,517.50 mi (10,488.91 km) |
| South San Francisco to Ceglie Messapico | 6,462.60 mi (10,400.55 km) |
