Miles between Irving, TX and Longmont, CO

There are
801 mi
from Irving, TX to Longmont, CO

That's the driving distance. It would take 14 hours 45 mins to go from Irving, Texas to Longmont, Colorado.

The flight distance (direct flight from Irving, TX to Longmont, CO) is 679.97 mi.

801 mi = 1,289.50 kms