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Amusement park · St. Louis, Missouri, Missouri
Six Flags St. Louis
An amusement park in Eureka, about 50 km from St. Louis, opened in 1971 as Six Flags, featuring roller coasters and a water park next door.
Illustrative images. The pictures in this guide are illustrations based on the real place, not photographs, and may differ from it.
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About Six Flags St. Louis
The Eureka amusement park opened in 1971 as Six Flags Over Mid-America and operated for decades as Six Flags St. Louis. In 2026 the park changed ownership and was renamed Mid America Adventure; the neighboring water park is also expected to receive a new name.
The park has themed areas inspired by the region’s history, with wooden and steel roller coasters, including the Screamin' Eagle (1976), one of the oldest wooden coasters still operating in the country, plus rides for small children and summer shows. The adjacent water park has a wave pool, lazy river, and water slides.
The park operates from spring through fall, with days and hours that vary throughout the season; in autumn there is Halloween programming.
Before you go
Practical information
Cidade Turismo reviews its information regularly, but something may have changed. Check with the place before planning your trip.
How much time to set aside
A full day.
Best time
On weekdays in early summer; the water park opens only in the hot months.
How to get there
By car, about 50 km southwest of downtown St. Louis via I-44.
Tip
Check the website for operating days, which change during the season, and for the current name of the water park.
Official website
Get your questions answered
Frequently asked questions about Six Flags St. Louis
Did Six Flags St. Louis change its name?
Yes. In 2026 the park was renamed Mid America Adventure after a change of ownership.
Where is the St. Louis amusement park located?
In Eureka, about 50 km from downtown St. Louis.
Is the park open all year?
No, it operates from spring through fall, with varying days and hours.