Miles between Longmont, CO and Santa Rosa, CA

There are
1,238 mi
from Longmont, CO to Santa Rosa, CA

That's the driving distance. It would take 21 hours 20 mins to go from Longmont, Colorado to Santa Rosa, California.

The flight distance (direct flight from Longmont, CO to Santa Rosa, CA) is 947.55 mi.

1,238 mi = 1.61 kms