A list of events that occurred on July 1 related to Six Flags.
- 1883 – Newhall Land and Farming Company is founded.
- 1974 – Six Flags Great Adventure opens.
- 2011 – Green Lantern: First Flight opens at Six Flags Magic Mountain.
- 2023 - Circuit Breaker Grand Prix – Electric Go-Karts opens at Six Flags Fiesta Texas.