Miles between Sunnyvale, CA and Thornton, CO

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

That's the driving distance. It would take 21 hours 58 mins to go from Sunnyvale, California to Thornton, Colorado.

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

1,276 mi = 1.61 kms