Miles between Longmont, CO and San Francisco, CA

There are
1,231 mi
from Longmont, CO to San Francisco, CA

That's the driving distance. It would take 21 hours 8 mins to go from Longmont, Colorado to San Francisco, California.

The flight distance (direct flight from Longmont, CO to San Francisco, CA) is 943.21 mi.

1,231 mi = 1.61 kms