Seasonal Event

Kids Boo FestAll fun. No fear.

Kids dressed in Halloween costumes trick or treating

Kids Boo Fest

Saturdays & Sundays, September 13 - November 2, 2025

Embrace fall with a spooktacular Halloween daytime celebration for all ages at Six Flags St. Louis. Savor unBOOlievable entertainment, family-friendly activities, trick-or-treat trails, and Halloween-themed experiences that are perfect for little ghouls and goblins. All this, plus your favorite family and thrill rides, make Kids Boo Fest a daytime Halloween adventure for everyone.

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