Miles between Longmont, CO and Dumas, TX

There are
401 mi
from Longmont, CO to Dumas, TX

That's the driving distance. It would take 7 hours 37 mins to go from Longmont, Colorado to Dumas, Texas.

The flight distance (direct flight from Longmont, CO to Dumas, TX) is 342.50 mi.

401 mi = 645.51 kms