Membership FAQ

Frequently Asked Questions

Have questions about OMSI memberships? We have answers! For more information please contact us at or (503) 797-4000.

Can I apply general admission tickets toward a membership?

Yes! When you visit OMSI and pay for general admission tickets, you can apply the general admission portion of the cost of those tickets toward a membership. You can do so at any time on the day of your visit—or up to 30 days after that visit. For additional questions, please stop by the front desk or reach out to us via email at

Can I purchase an OMSI membership as a gift for someone else?

Yes! An OMSI membership is the gift of a scientific journey and makes a great present for any occasion. When you purchase a gift membership, you will receive a gift voucher that can be given to the recipient. The membership will start once that gift voucher has been redeemed.

Are memberships refundable?

No, all OMSI membership sales are final. There are no refunds on OMSI memberships or gift memberships.

How old can children be on the membership? Do I have to list their names?

Children can be between the ages of 3 and 17 years of age, and they do not have to be named on the membership. Visitors aged 2 and under receive free admission.

Can I change the name of the adults on the membership?

You have the opportunity to change the names on your membership during the annual renewal process. However, if you need to change a name on your membership before then, we can help you do so. Please contact us at 503.797.4000 or

Do I need a physical membership card to visit OMSI?

All of our memberships are now digital! Bring your photo ID and check in at the front desk.

Why do I need to present a photo ID?

OMSI memberships are non-transferrable. All members are asked to present a form of photo ID to ensure the membership is being used by the member, and not someone else.

Can a guest use my membership without being named on the membership? What if a grandparent/caretaker/family friend wants to take my children to OMSI?


Guests must come accompanied by one of the named adults on the membership. Named members must present a photo ID at check-in. If there’s an ongoing caregiver that you would like to add to the membership, please contact us at 503.797.4000 or

What if I have additional guests with me who are not covered by my membership level?

Guests not covered by your membership level will need to purchase adult, senior, or youth tickets at the regular price. Your entire party may accompany you through the member check-in line and pay for their tickets with you.

As an OMSI member, what other discounts am I eligible for?

Our Members receive discounts on special exhibits; Theater, Planetarium, and Submarine tickets; 15% o OMSI After Dark tickets; 10% o Summer Camps & Classes; 15% o special events; and a 10% discount in the OMSI Science Store, Theory Restaurant, and Empirical Café. See one of our staff members for further details. Note that some restrictions may apply.

Is an OMSI membership tax-deductible?

Memberships are non-refundable and may be tax deductible depending on the amount. Please consult your tax advisor for details.

How do I use the submarine or theater vouchers that came with my membership?

You can redeem submarine or theater vouchers online or at the front desk during your visit. You may call OMSI’s concierge line at 503.797.4000 to reserve tickets for future dates. Vouchers are one-time use passes, and do not roll over year to year.

What counts as a Planetarium matinee?

Planetarium matinees are shows starting between 11am and 4:30pm. Planetarium tickets can be purchased and redeemed at the front desk. Evening laser show presentations are not matinees.

Does OMSI offer financial aid for memberships?

OMSI is committed to making science-fueled fun available for all. We offer several admission access programs including Membership Access, Arts for All, and Educator Previews. Please visit for more information.

Is an OMSI membership reciprocal with other museums?

Yes! OMSI participates in the Association of Science-Technology Centers’ (ASTC) Passport Program, which entitles OMSI members to free admission at more than 350 science and technology centers in the U.S. and worldwide. Ensure you have your OMSI membership email to show proof of membership prior to arriving at other museums.


More information about the ASTC Passport Program and reciprocal museums can be found on ASTC’s site.


Please note: OMSI Members do not receive free admission to The Evergreen Aviation Museum.