Miles between Longmont, CO and Fountain Valley, CA

There are
1,045 mi
from Longmont, CO to Fountain Valley, CA

That's the driving distance. It would take 18 hours 28 mins to go from Longmont, Colorado to Fountain Valley, California.

The flight distance (direct flight from Longmont, CO to Fountain Valley, CA) is 837.05 mi.

1,045 mi = 1.61 kms