There are
603 mi
from Fargo, ND to Grayslake, IL
That's the driving distance. It would take 11 hours 9 mins to go from Fargo, North Dakota to Grayslake, Illinois.
The flight distance (direct flight from Fargo, ND to Grayslake, IL) is 531.67 mi.
603 mi = 969.66 kms