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20 verified offers

OMSI Coupons & Promo Codes - October 2026

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20 Offers

  • #1 · Hottest

    Save 20% On All Camps & Classes With Omsi Membership

    1,296 uses all-time 100% success
    Get Deal ↗

    Discount applied on site

  • Omsi Care - $32

    1,252 uses all-time 100% success
    Get Deal ↗

    Discount applied on site

  • General Youth Admission For $9.75

    1,298 uses all-time 100% success
    Get Deal ↗

    Discount applied on site

  • Empirical Theaters

    1,290 uses all-time 100% success
    Get Deal ↗

    Discount applied on site

  • Comfortable, Enjoyable Museum Experience

    1,268 uses all-time 100% success
    Get Deal ↗

    Discount applied on site

  • Omsi After Care 8/14-18 For $40

    1,312 uses all-time
    Get Deal ↗

    Discount applied on site

  • Get Omsi Before Care 7/10-14 For $40

    1,284 uses all-time
    Get Deal ↗

    Discount applied on site

  • Museum Adult From $14

    1,299 uses all-time 100% success
    Get Deal ↗

    Discount applied on site

  • Motion Simulator From $5

    1,298 uses all-time 100% success
    Get Deal ↗

    Discount applied on site

  • Animation 6-8 As Low As $255

    1,270 uses all-time 100% success
    Get Deal ↗

    Discount applied on site

  • General Donation As Low As $25

    1,297 uses all-time
    Get Deal ↗

    Discount applied on site

  • Omsi Before Care 7/10-14 From $40

    1,295 uses all-time
    Get Deal ↗

    Discount applied on site

  • Omsi Before Care 6/26-30 From $40

    1,306 uses all-time 100% success
    Get Deal ↗

    Discount applied on site

  • Membership Starting As Low As $90

    1,281 uses all-time 100% success
    Get Deal ↗

    Discount applied on site

  • General Admission - Adult From $14

    1,300 uses all-time
    Get Deal ↗

    Discount applied on site

  • Camp Gray Scholarship As Low As $25

    1,290 uses all-time 100% success
    Get Deal ↗

    Discount applied on site

  • All About Earthquakes Ticket From $10

    1,284 uses all-time 100% success
    Get Deal ↗

    Discount applied on site

  • Kitchen Chemistry 7/17-21 From $362.50

    1,275 uses all-time 100% success
    Get Deal ↗

    Discount applied on site

  • Before/After Care At Omsi As Low As $32

    1,289 uses all-time 100% success
    Get Deal ↗

    Discount applied on site

  • General Admission Starting As Low As $9.75

    1,301 uses all-time 100% success
    Get Deal ↗

    Discount applied on site

Why the board holds up

The floor rules

Ranked by live signals

Codes rise and fall on real member usage and votes; nothing is pinned.

Vote after you try

Thumbs feed the success rate shown on every code.

About the store

OMSI

You will find the latest OMSI Coupons & Deals added by ThinkUp users and moderators on this page. Be sure to take advantage of these offers before checking out at omsi.edu

Education

Playbook

Run these plays

Start at the top — The #1 code carries the strongest recent signal.

Codes vs deals — A peel hides a code to paste at checkout; GET DEAL links go straight to the offer, no code needed.

If a code fails — Vote it down and try the next; the board reorders on what actually works.

Straight answers

What does the success rate mean?

It reflects recent member feedback on that code — thumbs up and down left after checkout.

What happens when a code stops working?

It drops off the board. Nothing is kept around once it stops working for members.

Do I need an account to use a code?

No. Reveal any code and copy it — no sign-up required.

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Similar stores

Save 20% On All Camps & Classes With Omsi Membership

100% success

Get Deal ↗