| South San Francisco to Chivasso | 5,931.26 mi (9,545.44 km) |
| South San Francisco to Ciampino | 6,259.19 mi (10,073.19 km) |
| South San Francisco to Cicciano | 6,362.41 mi (10,239.31 km) |
| South San Francisco to Cingoli | 6,186.72 mi (9,956.57 km) |
| South San Francisco to Cinisello Balsamo | 5,950.07 mi (9,575.72 km) |
| South San Francisco to Cinisi | 6,482.32 mi (10,432.29 km) |
| South San Francisco to Cirie | 5,920.35 mi (9,527.89 km) |
| South San Francisco to Ciro Marina | 6,528.45 mi (10,506.52 km) |
| South San Francisco to Cislago | 5,937.33 mi (9,555.22 km) |
| South San Francisco to Cisterna di Latina | 6,277.76 mi (10,103.07 km) |
| South San Francisco to Cisternino | 6,455.87 mi (10,389.72 km) |
| South San Francisco to Citta di Castello | 6,154.07 mi (9,904.01 km) |
| South San Francisco to Citta Sant'Angelo | 6,258.95 mi (10,072.81 km) |
| South San Francisco to Cittadella | 6,016.51 mi (9,682.63 km) |
| South San Francisco to Cittanova | 6,559.30 mi (10,556.17 km) |
