Miles between Thornton, CO and Walnut, CA

There are
1,003 mi
from Thornton, CO to Walnut, CA

That's the driving distance. It would take 17 hours 34 mins to go from Thornton, Colorado to Walnut, California.

The flight distance (direct flight from Thornton, CO to Walnut, CA) is 817.42 mi.

1,003 mi = 1.61 kms