Miles between Union City, CA and Sunnyvale, CA

There are
25 mi
from Union City, CA to Sunnyvale, CA

That's the driving distance. It would take 33 minutes to go from Union City, California to Sunnyvale, California.

The flight distance (direct flight from Union City, CA to Sunnyvale, CA) is 15.42 mi.

25 mi = 40.30 kms