News SixFlags Fright Fest Tickets on Sale! Sep 22, 2016 SixFlags Fright Fest tickets are now on sale!! Tickets can be purchased online using promo code 1546FF. The tickets are valid for one day admission for any of one of the following days: September 24, 25, 2016 or October 7, 8, 9, or 10, 2016. Click on the image or here for more details.