Six Flags Offering Free Tickets to Vaccinated Guests May 13, 2021, 12:41 PM · Six Flags is stepping up efforts to encourage people to get vaccinated against Covid. Today, the theme park chain announced that its Chicago-area park - Six Flags Great America - is donating 50,000 one-day tickets to the State of Illinois in support of Covid vaccination efforts. "Six Flags is honored to partner with state leaders to encourage Illinois residents to get vaccinated, especially in underserved communities," Six Flags President and CEO Mike Spanos said. "We appreciate Governor Pritzker’s leadership on this initiative and we look forward to moving to Phase 5 very soon."