Six Flags Hotel Features Family Friendly Holidome Located off Interstate 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 25USD a day on Six Flags parking charges. Our Kids Eat Free program can allow Families with two children 12 and under to save 50USD 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 dont 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 with up to four children per paying adult. During the winter enjoy a family getaway and special ticket prices for Hidden Valley Ski Resort.