Six Flags Fright Fest

Fright Fest (also known as Festival Del Terror at Six Flags México) is a Halloween-themed seasonal event held annually at legacy Six Flags theme parks in the United States, Canada, and Mexico, as well as three parks owned by EPR Properties. The event normally runs from early September through Halloween, which adds haunted attractions and themed areas named Scare Zones, as well as live entertainment.

Fright Fest was originally called Fright Nights when it debuted at Six Flags AstroWorld in 1986. Following the COVID-19 pandemic, Fright Fest was temporarily renamed Hallowfest in 2020.