Miles between San Diego, CA and Longmont, CO

There are
1,103 mi
from San Diego, CA to Longmont, CO

That's the driving distance. It would take 19 hours 30 mins to go from San Diego, California to Longmont, Colorado.

The flight distance (direct flight from San Diego, CA to Longmont, CO) is 843.69 mi.

1,103 mi = 1.61 kms