| South San Francisco to Keene (New Hampshire) | 2,626.92 mi (4,227.61 km) |
| South San Francisco to Keizer (Oregon) | 508.73 mi (818.72 km) |
| South San Francisco to Keller (Texas) | 1,452.99 mi (2,338.36 km) |
| South San Francisco to Kelso (Washington) | 585.71 mi (942.60 km) |
| South San Francisco to Kemp Mill (Maryland) | 2,436.04 mi (3,920.42 km) |
| South San Francisco to Ken Caryl (Colorado) | 942.14 mi (1,516.23 km) |
| South San Francisco to Kendale Lakes (Florida) | 2,580.15 mi (4,152.35 km) |
| South San Francisco to Kendall (Florida) | 2,584.28 mi (4,159.00 km) |
| South San Francisco to Kendall Park (New Jersey) | 2,544.08 mi (4,094.30 km) |
| South San Francisco to Kendall West (Florida) | 2,578.52 mi (4,149.73 km) |
| South San Francisco to Kenmore (New York) | 2,297.51 mi (3,697.49 km) |
| South San Francisco to Kenmore (Washington) | 697.74 mi (1,122.91 km) |
| South San Francisco to Kenner (Louisiana) | 1,909.60 mi (3,073.21 km) |
| South San Francisco to Kennesaw (Georgia) | 2,117.76 mi (3,408.21 km) |
| South San Francisco to Kennett (Missouri) | 1,781.32 mi (2,866.75 km) |
