Here’s the latest snapshot based on available reporting:
- Six Flags Great America in Gurnee is not closing; as of 2026, it is celebrating its 50th season with a dedicated anniversary program running through mid-2026. If anything changes, it would be announced by Six Flags and covered by major outlets.[3]
- Nearby Six Flags California’s Great America (Santa Clara) has been widely reported as announced for closure after the 2027 season, with potential lease implications and some emphasis on selling or redeveloping the land. This reflects a broader portfolio review at Six Flags, and the exact final closure date could hinge on lease extensions or negotiations.[1][4]
- Separately, Six Flags America in Maryland was reported to be closing by the end of its 2025 season, tied to strategic fit in the company’s long-term growth plan. If you’re tracking closures by location, that park’s status is distinct from the Great America (Illinois) park and the California park.[1]
What you might want next:
- A quick read on each park’s status by location (Illinois vs California vs Maryland) and the implications for operation years and potential redevelopment.[4][3]
- If you’d like, I can pull up the most recent official statements from Six Flags for each park and summarize them side-by-side.[1]
Illustration (example of how a quick timeline could look, not a final chart):
- 2026: Six Flags Great America (Illinois) 50th anniversary season begins.
- 2027: California Great America could close after 2027 season unless lease extended.
- 2025: Six Flags America (Maryland) announced closure by end of 2025 season.
Note: The current date is April 25, 2026, and this summary reflects reported developments up to that point. If you’d like, I can search for the very latest official statements or provide a concise side-by-side table of park status with dates.[3][1]