Miles between Concord, CA and Thornton, CO

There are
1,225 mi
from Concord, CA to Thornton, CO

That's the driving distance. It would take 20 hours 57 mins to go from Concord, California to Thornton, Colorado.

The flight distance (direct flight from Concord, CA to Thornton, CO) is 924.79 mi.

1,225 mi = 1.61 kms