Miles between Longmont, CO and Union City, CA

There are
1,245 mi
from Longmont, CO to Union City, CA

That's the driving distance. It would take 21 hours 24 mins to go from Longmont, Colorado to Union City, California.

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

1,245 mi = 1.61 kms