Miles between Thornton, CO and Avondale, AZ

There are
838 mi
from Thornton, CO to Avondale, AZ

That's the driving distance. It would take 15 hours 51 mins to go from Thornton, Colorado to Avondale, Arizona.

The flight distance (direct flight from Thornton, CO to Avondale, AZ) is 603.52 mi.

838 mi = 1,349.22 kms