A list of events that occurred on October 30 related to Six Flags.
- 1988 – Fright Nights ends at Six Flags St. Louis.
- 1994
- Fright Fest 1994 ends at Six Flags Great Adventure
- Fright Fest 1994 ends at Six Flags Magic Mountain.
- Fright Fest 1994 ends at Six Flags St. Louis.
- 2005 – Final day of operation at Six Flags AstroWorld.
- 2011– Fright Fest 2011 ends at Six Flags St. Louis.
- 2016 – Fright Fest 2016 ends at Six Flags St. Louis.