Event · Community

Boo Fest at Mid America Adventure (formerly Six Flags St. Louis)

When
Sat, Oct 17 · 12:00 PM–6:00 PMSaturdays & Sundays through November 1, 12:00-6:00pm
Where
Mid America Adventure (formerly Six Flags St. Louis)4900 Six Flags Rd., Eureka, MO 63025Open in Google Maps ↗
Ages
Check age guidance
Cost
Park admission or season pass (price not on event page)
Organizer
Mid America Adventure

Upcoming dates: Sat, Oct 17 · Sun, Oct 18 · Sat, Oct 24 · Sun, Oct 25 · Sat, Oct 31 · Sun, Nov 1

Boo Fest is the park's daytime Halloween event for families, from noon to 6:00pm on weekends through November 1. The park lists festive decorations, kid-friendly activities, seasonal treats, live entertainment and family rides, along with trick-or-treating, costume fun, shows and fall-themed surprises. The evening Fright Fest, with haunted attractions, runs separately from 6:00 to 11:00pm. The park was Six Flags St. Louis and has been renamed Mid America Adventure under new management (Enchanted Parks).

Visit the official site ↗
Official sources checked2026-10-16

Published details checked online. Contact responsiveness and live booking availability have not been confirmed.

What was checked & what still needs confirmation

Read in a browser (curl/WebFetch blocked or JS-only). sixflags.com/stlouis now redirects to midamericaadventure.enchantedparks.com. Dates come from the events page ('Saturdays & Sundays-September 12-November 1'); the detail page says 'Select Days'. No Holiday in the Park or other winter event is listed on the events page or the calendar.

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