Miles between Fontana, CA and Thornton, CO

There are
977 mi
from Fontana, CA to Thornton, CO

That's the driving distance. It would take 17 hours 3 mins to go from Fontana, California to Thornton, Colorado.

The flight distance (direct flight from Fontana, CA to Thornton, CO) is 794.16 mi.

977 mi = 1,572.94 kms