Six Flags offers four or more Six Flags 2011 Combo Season Passes from $49.99 each, based on the participating park you select. That's at least $10 under the price of an individual pass and the best deal we've seen for a 2011 season pass. This combo includes free admission for the rest of 2010, including Fright Fest 2010, free parking, free tickets for friends, pass-holder value coupon book, and more. Deal ends October 31.