Miles between Longmont, CO and Fort Smith, AR

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

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

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

838 mi = 1,347.95 kms