And Six Flags Great America in Gurnee, Illinois' largest amusement ... Six Flag's signature spooky event featuring five haunted houses, Fright Fest, takes place each night the park is open through ...

Six Flags Great America will operate daily from May 20 ... weekends from mid-September through October for Six Flags’ “Fright Fest” event. More information on the park’s hours can be ...

Located in north suburban Gurnee, Six Flags Great America is preparing to open for ... Hours for possible weekend operation in September and Fright Fest in October have yet to be announced.