Show Me St. Louis STL Auto Show kicks off today The St. Louis Auto Show opens in less than an hour, but Dana is there now to show us what's on the floor. The name is little deceiving because it's so much more than a car show. The St. Louis Auto Show is at America's Center and the Dome. The doors open today at 11. They'll close at 9. Tomorrow and Saturday hours are 9 to 10 Sunday is 9 to 5. Tickets are $11 and can be purchased at saintlouisautoshow.com. Children under 12 can get in for free.