Miles between Boulder, CO and Lewisville, TX

There are
781 mi
from Boulder, CO to Lewisville, TX

That's the driving distance. It would take 14 hours 30 mins to go from Boulder, Colorado to Lewisville, Texas.

The flight distance (direct flight from Boulder, CO to Lewisville, TX) is 664.97 mi.

781 mi = 1,256.46 kms