Miles between Union City, CA and Boise, ID

There are
652 mi
from Union City, CA to Boise, ID

That's the driving distance. It would take 12 hours 3 mins to go from Union City, California to Boise, Idaho.

The flight distance (direct flight from Union City, CA to Boise, ID) is 515.40 mi.

652 mi = 1,048.81 kms