Miles between Sioux City, IA and Longmont, CO

There are
587 mi
from Sioux City, IA to Longmont, CO

That's the driving distance. It would take 10 hours 48 mins to go from Sioux City, Iowa to Longmont, Colorado.

The flight distance (direct flight from Sioux City, IA to Longmont, CO) is 479.08 mi.

587 mi = 945.02 kms