There are
1,298 mi
from Thornton, CO to Scotts Valley, CA
That's the driving distance. It would take 22 hours 24 mins to go from Thornton, Colorado to Scotts Valley, California.
The flight distance (direct flight from Thornton, CO to Scotts Valley, CA) is 940.84 mi.
1,298 mi = 1.61 kms