Miles between Portland, OR and Longmont, CO

There are
1,218 mi
from Portland, OR to Longmont, CO

That's the driving distance. It would take 20 hours 55 mins to go from Portland, Oregon to Longmont, Colorado.

The flight distance (direct flight from Portland, OR to Longmont, CO) is 961.56 mi.

1,218 mi = 1.61 kms