Miles between St George, UT and Longmont, CO

There are
656 mi
from St George, UT to Longmont, CO

That's the driving distance. It would take 11 hours 26 mins to go from St George, Utah to Longmont, Colorado.

The flight distance (direct flight from St George, UT to Longmont, CO) is 504.03 mi.

656 mi = 1,054.95 kms