| South San Francisco to Kalispell (Montana) | 835.60 mi (1,344.77 km) |
| South San Francisco to Kaneohe (Hawaii) | 2,384.53 mi (3,837.54 km) |
| South San Francisco to Kankakee (Illinois) | 1,848.60 mi (2,975.04 km) |
| South San Francisco to Kannapolis (North Carolina) | 2,304.21 mi (3,708.26 km) |
| South San Francisco to Kansas City (Kansas) | 1,496.43 mi (2,408.28 km) |
| South San Francisco to Kansas City (Missouri) | 1,506.59 mi (2,424.62 km) |
| South San Francisco to Kapaa (Hawaii) | 2,439.00 mi (3,925.19 km) |
| South San Francisco to Kapolei (Hawaii) | 2,401.66 mi (3,865.10 km) |
| South San Francisco to Katy (Texas) | 1,614.77 mi (2,598.73 km) |
| South San Francisco to Kaukauna (Wisconsin) | 1,825.46 mi (2,937.80 km) |
| South San Francisco to Kaysville (Utah) | 605.81 mi (974.96 km) |
| South San Francisco to Kearney (Missouri) | 1,515.62 mi (2,439.16 km) |
| South San Francisco to Kearney (Nebraska) | 1,263.65 mi (2,033.65 km) |
| South San Francisco to Kearns (Utah) | 594.53 mi (956.80 km) |
| South San Francisco to Kearny (New Jersey) | 2,562.18 mi (4,123.43 km) |
