Miles between St Louis, MO and Grayslake, IL

There are
321 mi
from St Louis, MO to Grayslake, IL

That's the driving distance. It would take 6 hours 12 mins to go from St Louis, Missouri to Grayslake, Illinois.

The flight distance (direct flight from St Louis, MO to Grayslake, IL) is 280.74 mi.

321 mi = 516.58 kms