Ready for free museum days in Chicago? Some of the city’s best museums open their doors for free this October, so you can take in world-class art, science, and history without spending a dime. That is worth the trip if you ask me.
Free admission days change every year, and most of them are for Illinois residents, so bring a state ID or driver’s license to show proof. Here are the free museum days on the calendar for October 2026.
The Field Museum
The Field Museum is open every single day of the year except Christmas. It is open 9:00 am to 5:00 pm daily, and the last admission is 4:00 pm, so keep that in mind when planning your visit. The free tickets cover all general admission exhibitions.
- Free Admission Dates: October 7, 14, 21, 28, 2026 (Illinois residents)
- Step back in time: Journey through ancient Egypt, come face to face with towering dinosaurs, and explore the wonders of the natural world.
- Highlights: SUE the T. rex, the Inside Ancient Egypt exhibit, and the Grainger Hall of Gems.
Peggy Notebaert Nature Museum
The Peggy Notebaert Nature Museum is open 10 am to 4 pm, and Illinois residents can visit free during its resident donation days. You can grab your free tickets online in advance or in person, and a $10 suggested household donation goes a long way if you feel like giving.
- Free Admission Dates: October 1, 2, 5, 6, 7, 8, 9, 2026 (Illinois residents)
- Connect with nature: Immerse yourself in the beauty and diversity of the natural world through interactive exhibits and live animal encounters.
- Highlights: The Judy Istock Butterfly Haven, the Crown Family PlayLab, and the rooftop Wildlife Garden.
Chicago Children’s Museum at Navy Pier
Chicago Children’s Museum is three floors of play-filled fun, with temporary exhibits, permanent favorites, and a rotating calendar of programs, all included with admission. It does not run general public free days this month, but veterans and active military families always get in free.
- Free for Veterans and Active Military: Veterans receive one free admission daily with military ID, and active-duty military receive up to four free admissions for themselves and three guests with valid military ID.
- Spark creativity: Let the little ones loose on hands-on activities designed to inspire young minds and encourage learning through play.
- Highlights: The Cloud Buster climbing structure, the Water City play area, and the Art Studio.
Adler Planetarium
The Adler Planetarium is Chicago’s museum dedicated to astronomy and astrophysics, sitting right on the lake with one of the best skyline views in the city. During Adler at Night, Illinois residents get in free and can wander the galleries under the stars.
- Free Admission: Wednesday evenings in October, 4 to 10 p.m. — October 7, 14, 21, 28, 2026 (Illinois residents; reserve your timed ticket online in advance and bring proof of residency)
- Explore the cosmos: Take in planetarium shows, interactive exhibits, and telescope time at the Doane Observatory on a clear night.
- Highlights: The Grainger Sky Theater, Mission Moon, and the Doane Observatory with the largest public telescope in the region.
Plan Your Visit
- Check Museum Websites: Free day schedules can change, so visit each museum’s official site for the latest on free admission days, hours, and special events before you go.
- Reserve Ahead: Free days are popular and many museums ask you to reserve timed tickets online. Book early so you are not turned away at the door.
- Bring Proof of Residency: Most free days are for Illinois residents, so bring a state ID, driver’s license, or CityKey card.
- Plan Your Route: The Field Museum, Shedd, and Adler are all neighbors on the Museum Campus, so you can pair a free evening at the Adler with a daytime visit next door.
Take Advantage of Free Admission Days
Free museum days are one of the best deals in Chicago. You can fill a whole day with dinosaurs, butterflies, space, and skyline views, and spend almost nothing doing it. Pick a date, grab your tickets, and go enjoy the city.
Remember: Free admission days are subject to change, so double-check each museum’s website for the most up-to-date information before you head out.
Explore more: Read the full 15-page Chicago Travel Guide to travel to Chicago easily.
Happy exploring!
