Fright Fest 2023 at most Six Flags parks started in early–mid September 2023 , with specific dates depending on the park.

Typical 2023 start dates by park

Most U.S. Six Flags parks ran Fright Fest on select nights from around September 8–23, 2023 , through late October or Halloween. For example:

  • Six Flags Magic Mountain: started September 8, 2023.
  • Six Flags Great Adventure: started September 8, 2023.
  • Six Flags Fiesta Texas: started September 9, 2023.
  • Six Flags Over Texas: started September 15, 2023.
  • Six Flags St. Louis: started September 16, 2023.
  • Six Flags America: started September 16, 2023.
  • Six Flags Great America: started September 16, 2023.
  • Six Flags Over Georgia: started September 16, 2023.
  • Six Flags Darien Lake: started September 23, 2023.
  • Six Flags New England: started September 23, 2023.
  • Six Flags Frontier City: started September 23, 2023.
  • Six Flags Discovery Kingdom: started September 23, 2023.
  • Six Flags Great Escape: started September 30, 2023.

In short: if you’re asking “when does Fright Fest start 2023,” the answer is that it kicked off on select nights beginning as early as September 8, 2023 , varying slightly by Six Flags park but always in that early–mid September window.

Information gathered from public forums or data available on the internet and portrayed here.