Miles between Union City, CA and Longmont, CO

There are
1,244 mi
from Union City, CA to Longmont, CO

That's the driving distance. It would take 21 hours 22 mins to go from Union City, California to Longmont, Colorado.

The flight distance (direct flight from Union City, CA to Longmont, CO) is 927.06 mi.

1,244 mi = 1.61 kms