Miles between Rowlett, TX and Longmont, CO

There are
821 mi
from Rowlett, TX to Longmont, CO

That's the driving distance. It would take 15 hours 7 mins to go from Rowlett, Texas to Longmont, Colorado.

The flight distance (direct flight from Rowlett, TX to Longmont, CO) is 689.67 mi.

821 mi = 1,321.99 kms