A list of events that occurred on September 22 related to Six Flags.

• 2018 – Fright Fest 2018 begins at Six Flags America.
• 2018 – Fright Fest 2018 begins at Six Flags New England.
• 2018 – Fright Fest 2018 begins at Six Flags Over Georgia.
• 2018 – Fright Fest 2018 begins at Six Flags Over Texas.