How to make a mega trip cheaper? in Theme Parks, Roller Coasters, & Donkeys! Posted February 22, 2016 Great America is going to be TERRIBLE on July 5. It's terrible almost every day of the year, because the operations there are worse now than I can ever remember in my lifetime. It's going to be ultra horrible terrible on July 5. You can save yourself a LOT of money by skipping Great America entirely. If you must go, you will absolutely need to buy a Flash Pass to be able to get on more than 3 or 4 coasters. Another money saving tip for Illinois. 294 is a toll road almost the entire way to Great America from I-80. If you have an E-Z Pass, use it! The I-Pass electronic toll system Illinois uses accepts E-Z Pass, and electronic tolls are half the price of cash tolls in all of Illinois. You'll have a few tolls on 294 to get to I-55 when you head to SFStl as well. 55 itself is a freeway, though.