Buy discounted tickets to Six Flags Great America and help support Bickerdike Redevelopment Corporation! Only $39.99 per person (includes parking!!)* Tickets only valid on: Friday, September 27 5:00 - 11:00 pm Saturday, September 28 11:00 am - 11:00 pm or Sunday, September 29, 2019 11:00 am - 9:00 pm    To purchase tickets:     Go to sixflags.com/greatamerica Enter this promo code: BICKERDIKE in the upper right hand corner of home page to receive discount Tickets cannot be purchased in person at the park, online…