I will be traveling west on I 90 from NY State on my way to Yellowstone. Is there a better way around Chicago than staying on I 90? I have a Class A gasser towing a jeep. Appreciate the help.
Best bet...get on I-80 (plan an early Sunday morning around Chicago) to I-29 to I-90 in Iowa and into South Dakota if you want to come in from the north into Yellowstone.
If you want to come in from the south and drive through Teton Nat'l Park enroute to Yellowstone (highly recommended) just stay on I-80 and choose one of several good routes with an RV once you get into Wyoming, depending where you want to end up at. A couple are 287 and 191 and are both good. Have a fun trip!