Illinois State Fair Mega Pass 2025 Dates. While both passes are good for all 11 days, the mega pass is $90 and the. From now until july 31, mega passes are $80, and jumbo passes are.

From now until july 31, mega passes are $80, and jumbo passes are. Mega passes will be $70, which offers unlimited carnival rides, and $80 for the jumbo pass, which offers unlimited carnival.