Miles between La Mesa, CA and Longmont, CO

There are
1,103 mi
from La Mesa, CA to Longmont, CO

That's the driving distance. It would take 19 hours 29 mins to go from La Mesa, California to Longmont, Colorado.

The flight distance (direct flight from La Mesa, CA to Longmont, CO) is 835.44 mi.

1,103 mi = 1,774.88 kms