Miles between San Francisco, CA and Thornton, CO

There are
1,244 mi
from San Francisco, CA to Thornton, CO

That's the driving distance. It would take 21 hours 21 mins to go from San Francisco, California to Thornton, Colorado.

The flight distance (direct flight from San Francisco, CA to Thornton, CO) is 948.69 mi.

1,244 mi = 1.61 kms