A list of events that occurred on September 29 related to Six Flags.
- 2012 – FestEvil at Six Flags Great Adventure.
- 2017 – Fright Fest 2017 begins at Six Flags St. Louis.
- 2018 – Fright Fest 2018 begins at Great Escape.
- 2018 – Fright Fest 2018 begins at Darien Lake.