A list of events that occurred on October 1 related to Six Flags.
- 1991 – Fright Fest 1991 begins at Six Flags Great America.
- 1999
- Fright Fest debuts at Six Flags Kentucky Kingdom with Fright Fest 1999.
- Fright Fest 1999 begins at Six Flags Great Adventure.
- 2004 – Fright Fest 2004 begins at Six Flags Great Adventure.
- 2016
- Fright Fest 2016 begins at Great Escape.
- Fright Fest 2016 begins at La Ronde.