Miles between Thornton, CO and Caldwell, ID

There are
831 mi
from Thornton, CO to Caldwell, ID

That's the driving distance. It would take 13 hours 54 mins to go from Thornton, Colorado to Caldwell, Idaho.

The flight distance (direct flight from Thornton, CO to Caldwell, ID) is 657.44 mi.

831 mi = 1,336.99 kms