In 2023, Six Flags Fright Fest was held on select dates primarily in September and October. For example:
- Six Flags Magic Mountain Fright Fest ran on select nights from September 8 through October 31, 2023. The event was held on weekends and some weekdays within this date range.
- Six Flags Over Georgia's Fright Fest took place select dates from September 16 through October 29, 2023.
- Six Flags Discovery Kingdom hosted Fright Fest select dates from September 23 to October 29, 2023.
- Six Flags Great America's Fright Fest ran on select days from September 14 to November 3, 2023.
- Six Flags St. Louis held Fright Fest mainly on Fridays, Saturdays, and Sundays from September 16 through October 29, 2023.
- Six Flags Over Texas also held Fright Fest on select dates through October 31, 2023.
In summary, Six Flags Fright Fest 2023 typically ran from early to mid- September until the end of October at various Six Flags parks on select dates, mostly Fridays through Sundays, often with additional weekday events around Halloween.
