Miles between Fort Smith, AR and Longmont, CO

There are
837 mi
from Fort Smith, AR to Longmont, CO

That's the driving distance. It would take 14 hours 21 mins to go from Fort Smith, Arkansas to Longmont, Colorado.

The flight distance (direct flight from Fort Smith, AR to Longmont, CO) is 670.74 mi.

837 mi = 1,347.82 kms