Miles between Thornton, CO and Sunnyvale, CA

There are
1,276 mi
from Thornton, CO to Sunnyvale, CA

That's the driving distance. It would take 21 hours 57 mins to go from Thornton, Colorado to Sunnyvale, California.

The flight distance (direct flight from Thornton, CO to Sunnyvale, CA) is 935.71 mi.

1,276 mi = 1.61 kms