Miles between Longmont, CO and Kelso, WA

There are
1,259 mi
from Longmont, CO to Kelso, WA

That's the driving distance. It would take 21 hours 42 mins to go from Longmont, Colorado to Kelso, Washington.

The flight distance (direct flight from Longmont, CO to Kelso, WA) is 985.10 mi.

1,259 mi = 1.61 kms