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Parks
Six Flags Great America
Crowd calendar
09-26-2025
September 26, 2025
Six Flags Great America
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Information
Crowd level
26%
Crowd level
Quiet
Empty
Quiet
Busy
Packed
π»πΊπ€‘ 17:00-23:00
Events
π» Fright Fest
πΊ Oktoberfest
π€‘ Kids Boo Fest