Miles between Westminster, CO and Cahokia, IL

There are
856 mi
from Westminster, CO to Cahokia, IL

That's the driving distance. It would take 15 hours 8 mins to go from Westminster, Colorado to Cahokia, Illinois.

The flight distance (direct flight from Westminster, CO to Cahokia, IL) is 798.77 mi.

856 mi = 1,377.10 kms