Miles between Longmont, CO and Billings, MT

There are
529 mi
from Longmont, CO to Billings, MT

That's the driving distance. It would take 8 hours 44 mins to go from Longmont, Colorado to Billings, Montana.

The flight distance (direct flight from Longmont, CO to Billings, MT) is 424.27 mi.

529 mi = 851.21 kms