Miles between Thornton, CO and Walnut Creek, CA

There are
1,228 mi
from Thornton, CO to Walnut Creek, CA

That's the driving distance. It would take 21 hours to go from Thornton, Colorado to Walnut Creek, California.

The flight distance (direct flight from Thornton, CO to Walnut Creek, CA) is 927.75 mi.

1,228 mi = 1.61 kms