Miles between Simi Valley, CA and Longmont, CO

There are
1,060 mi
from Simi Valley, CA to Longmont, CO

That's the driving distance. It would take 19 hours to go from Simi Valley, California to Longmont, Colorado.

The flight distance (direct flight from Simi Valley, CA to Longmont, CO) is 854.50 mi.

1,060 mi = 1.61 kms