| South San Francisco to Cockermouth | 5,111.75 mi (8,226.57 km) |
| South San Francisco to Colchester | 5,371.68 mi (8,644.89 km) |
| South San Francisco to Coleford | 5,272.72 mi (8,485.62 km) |
| South San Francisco to Colne | 5,184.93 mi (8,344.33 km) |
| South San Francisco to Colwyn Bay | 5,167.65 mi (8,316.52 km) |
| South San Francisco to Congleton | 5,217.59 mi (8,396.90 km) |
| South San Francisco to Conisbrough | 5,230.73 mi (8,418.04 km) |
| South San Francisco to Connahs Quay | 5,190.16 mi (8,352.76 km) |
| South San Francisco to Consett | 5,146.22 mi (8,282.04 km) |
| South San Francisco to Conwy | 5,164.26 mi (8,311.07 km) |
| South San Francisco to Cookstown | 5,013.16 mi (8,067.90 km) |
| South San Francisco to Corby | 5,295.15 mi (8,521.71 km) |
| South San Francisco to Corfe Mullen | 5,341.05 mi (8,595.59 km) |
| South San Francisco to Corsham | 5,303.25 mi (8,534.76 km) |
| South San Francisco to Coseley | 5,251.50 mi (8,451.48 km) |
