What is the most efficient way to bypass Chicago?

If you will be leaving from somewhere in Wisconsin C.B.s route down I-39 to I-80 is the way I avoid Chicago. I also plan to go thru early in the a.m. or late at night.
If you're leaving from Fargo you could do the route I'll post a link to. This route is only 53 miles longer but about 3 1/4 hrs longer. This route avoids Chicago plus Minneapolis which I hate worse than going around the bottom of Chicago.

https://www.google.com/maps/dir/Fargo,+ND/Duluth/Mackinaw+City/Sandusky/@47.2362097,-93.7346767,8.08z/data=!4m26!4m25!1m5!1m1!1s0x52c8cb8d84677145:0x81aa30a52791aaca!2m2!1d-96.7898034!2d46.8771863!1m5!1m1!1s0x52ae527e782e37ff:0x90fdbf76eb580c72!2m2!1d-92.1004852!2d46.7866719!1m5!1m1!1s0x4d358b3940a9ad83:0xeac771ab20cc7a7a!2m2!1d-84.7271465!2d45.7774987!1m5!1m1!1s0x883a4160ab1e4547:0xff2a84906612320f!2m2!1d-82.7116821!2d41.4561754!3e0