We are excited to welcome you back to the Saint Louis Zoo! The safety of our guests, staff and animals is our highest priority, which is why we have made some changes in our operations to provide you with a safe and memorable experience. Review the Zoo’s reopening guidelines.

All guests, including Zoo members, must now reserve free, timed tickets prior to visiting.

Make a reservation (required)

2021 Hours  

Timed reservations are required to visit the Zoo.
Please arrive at the Zoo within your reserved time slot. Once at the Zoo, you may stay as long as you wish.

May 14 – August 15

Summer Zoo Weekends

  • Sunday through Thursday: 8 a.m.-5 p.m.*
  • Friday and Saturday: 8 a.m.-7 p.m.
  • *Thursdays, May 27, June 17, July 15 and August 12: 8 a.m-4:30 p.m.

July 4 (Independence Day)

  • Sunday, July 4: 8 a.m.-5 p.m.

August 16 – September 3

  • Daily: 9 a.m.-5 p.m.

September 4–6 (Labor Day Weekend)

  • Saturday through Monday: 8 a.m.-7 p.m.

September 7–9

  • Daily: 9 a.m.-5 p.m.

September 10 

  • Open 9 a.m.-12 p.m. on Friday, September 10. Early closing in preparation for ZOOFARI

September 11 – October 14

  • Daily 9 a.m.-5 p.m.

 Please check the calendar below for the hours on the day of your visit.

*During Boo at the Zoo and Wild Lights, the Zoo will close to the public at 4 p.m. each night of Boo at the Zoo (all pathways, restaurants, exhibits, and attractions will no longer be open.) Doors will re-open at 5 p.m. for the event. Zoo visitors who are planning to attend Boo at the Zoo will need to exit the Zoo and have their Boo at the Zoo tickets scanned for re-entry starting at 5 p.m. 

Advanced tickets are required for these events and are available for purchase online. Reservations for the Zoo during the day, of the event, does not count as entry to the event. 


What's Happening at the Zoo?

Click the link below for special events happening during your visit.

Calendar of Events


Admission to the Zoo is free; however, there are fees for some attractions.



Included with the Adventure PassNotes
Sea Lion Show $3.95 per person  Yes* Children under 2 are free. (Seasonal)
Conservation Carousel $2.95 per person Yes Children under 2 are free. All other persons require admission. All proceeds support the Saint Louis Zoo's conservation programs.
Dinoroarus $5.95 per person Yes Children under 2 are free. (Seasonal)
Stingrays at Caribbean Cove $3.95 per person Yes* Children under 2 are free. (Seasonal)
Zooline Railroad $7.95 per person Yes Includes all day on-off privileges. Children under 2 are free.
4-D Theater $3.95/members $4.95/non-members Yes  
Wild Wonder Outpost $2/members; 
No The Wild Wonder Outpost temporary CLOSED

Attractions are weather dependent and subject to change. 

Please note that during winter operating hours, attractions may not operate based on schedules. Forecast temperatures must reach the mid 50’s with no precipitation to allow for safe operation of the carousel, railroad and 4D Theater. 

*Stingrays at Caribbean Cove and the First Bank Sea Lion Show are seasonal. 

Stingrays at Caribbean Cove

Zooline Railroad

Conservation Carousel

Sea Lion Show

Adventure Passes

Enjoy a full day at the Zoo with all the amenities with the Adventure Pass!

Save with Adventure Passes