Miles between Thornton, CO and Clayton, CA

There are
1,231 mi
from Thornton, CO to Clayton, CA

That's the driving distance. It would take 21 hours 10 mins to go from Thornton, Colorado to Clayton, California.

The flight distance (direct flight from Thornton, CO to Clayton, CA) is 920.35 mi.

1,231 mi = 1.61 kms