Six Flags Hotel Features Family-Friendly Holidome Located off I-44 at exit 261, the Holiday Inn® Saint Louis West at Six Flags hotel is just steps from the gate of Six Flags St. Louis, an action-packed adventure park with exhilarating thrill rides and loads of fun for kids of all ages. Our free shuttle allows you to save $20.00 a day on Six Flags parking charges. Our Kids Eat Free program can allow families with 2 children 12 and under to save $50 per day. During your visit, you and the family will love our indoor Holidome. The pool, sauna and whirlpool are a great way to relax. But don't miss the fitness center, games area, putting green and shuffleboard court. After a day of fun, the entire family can dine at our Haymarket Restaurant where kids under 12 eat for free.