Miles between Napa, CA and Longmont, CO

There are
1,204 mi
from Napa, CA to Longmont, CO

That's the driving distance. It would take 20 hours 34 mins to go from Napa, California to Longmont, Colorado.

The flight distance (direct flight from Napa, CA to Longmont, CO) is 927.77 mi.

1,204 mi = 1.61 kms