Miles between Downey, CA and Thornton, CO

There are
1,022 mi
from Downey, CA to Thornton, CO

That's the driving distance. It would take 17 hours 55 mins to go from Downey, California to Thornton, Colorado.

The flight distance (direct flight from Downey, CA to Thornton, CO) is 833.30 mi.

1,022 mi = 1.61 kms