Miles between Longmont, CO and Richardson, TX

There are
811 mi
from Longmont, CO to Richardson, TX

That's the driving distance. It would take 14 hours 58 mins to go from Longmont, Colorado to Richardson, Texas.

The flight distance (direct flight from Longmont, CO to Richardson, TX) is 681.03 mi.

811 mi = 1,304.39 kms