Miles between Longmont, CO and El Reno, OK

There are
641 mi
from Longmont, CO to El Reno, OK

That's the driving distance. It would take 12 hours 10 mins to go from Longmont, Colorado to El Reno, Oklahoma.

The flight distance (direct flight from Longmont, CO to El Reno, OK) is 504.27 mi.

641 mi = 1,031.20 kms