Miles between Oklahoma City, OK and Grayslake, IL

There are
818 mi
from Oklahoma City, OK to Grayslake, IL

That's the driving distance. It would take 15 hours 4 mins to go from Oklahoma City, Oklahoma to Grayslake, Illinois.

The flight distance (direct flight from Oklahoma City, OK to Grayslake, IL) is 695.79 mi.

818 mi = 1,316.39 kms