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Hours and Prices

The Zoo is Free

Summer Hours 2025

May 23-26, Memorial Day Weekend
8 a.m.–6 p.m.

May 27 through Aug. 17
8 a.m.–5 p.m. — Sunday–Thursday*
8 a.m.–6 p.m. — Friday–Saturday*

*Friday, June 20 — 8 a.m.–noon (Zoo closes early for ZOOFARI)
*Friday, July 4 — 8 a.m.-5 p.m.
*Wednesday, Aug. 6 — 8 a.m.-3:30 p.m.

Summer Zoo Weekends

Aug. 18-29
9 a.m.–5 p.m. daily*

*Friday, Aug. 22 — 9 a.m.–3 p.m.
*Wednesday, Aug. 27 — 9 a.m.-4 p.m.

Labor Day Weekend, Aug. 30-Sept. 1
8 a.m.–6 p.m.


The Saint Louis Zoo's operating hours are subject to change. See below for additional 2025 hours.

Guest Alert for Friday, June 20

The Zoo opens at 8 a.m. and will close at noon on Friday, June 20, to prepare for ZOOFARI, the Zoo's most important fundraiser of the year. Guests are encouraged to visit other institutions within the Metropolitan Zoological Park and Museum District in the afternoon: Missouri Botanical Garden, Missouri History Museum, Saint Louis Art Museum and Saint Louis Science Center.

Fall & Winter Hours

Click to expand the blocks below to see additional hours.

Sept. 2 through Oct. 12, 2025
9 a.m.–5 p.m. daily*

*Tuesday, Sept. 30, 2025
9 a.m.-3:30 p.m.

Oct. 13 through Dec. 31, 2025
9 a.m.–4 p.m. daily, except holidays

Holiday Hours 2025:
Nov. 27 (Thanksgiving Day) — 9 a.m.–2 p.m.
Dec. 24 (Christmas Eve) — 9 a.m.–2 p.m.
Dec. 25 (Christmas Day) — Zoo closed
Dec. 31 (New Year's Eve) — 9 a.m.–3 p.m.

Jan. 1, 2026, (New Year's Day) — Zoo closed

Check back for 2026 hours.

Paid Attractions and Services

The Zoo is always free. Paid attractions are included in the Adventure Pass.

Experience more for less

Adventure Pass
Membership

Save with a Zoo Membership!

Want FREE parking, FREE rides on Zooline Railroad, and FREE admission to Sea Lion Show and other attractions? Don’t pass on this great value!

Get it all with your membership

Group Registration & Discounts

Register your group visit and learn about discounts for groups of 15 or more.

Group Discounts