When and where is the 2026 ASTRO Annual Meeting?

The 2026 ASTRO Annual Meeting takes place September 26-30, 2026, at the Thomas M. Menino Convention & Exhibition Center in Boston, Massachusetts. The Exhibit Hall is open September 27-29, 2026. A virtual option is also available for those who cannot attend in person.

How do I register for ASTRO 2026?

Registration is open through SPARGO, Inc., the only official registration provider for the ASTRO Annual Meeting. Rates are tiered by deadline: early-bird until June 25, 2026, advance from June 26 to August 13, 2026, and standard after August 13, 2026.

What is included in the meeting program?

The full conference package includes access to all education and scientific sessions, poster sessions, the Exhibit Hall, the PRO Program, the Saturday Physics Workshop, CME credits, and onDemand access to session content. The 2026 theme is "Data to Dialogue: Communicating Radiotherapy's Value to Advance Care."

How do I get to the venue and where can I stay?

The Menino Convention & Exhibition Center is under three miles from Logan International Airport and reachable via the MBTA Silver Line to World Trade Center Station. Nearby hotels include the Omni Boston Hotel at the Seaport, the Seaport Hotel Boston and the Dagny Boston; official housing is available through SPARGO, Inc.

ASTRO Annual Meeting 2026, Boston | Trade Show Event Directory

Q: Who should attend the ASTRO Annual Meeting?

The meeting is designed for the radiation oncology community, including radiation oncologists, medical physicists, dosimetrists, radiation therapists, oncology nurses, biologists and researchers. It is expected to draw more than 10,000 professionals from around the world.

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ASTRO Annual Meeting 2026, Boston | Trade Show Event Directory | Trade Show Directory

Attendance

As the leading global conference in radiation oncology, the meeting is expected to attract more than 10,000 oncologists, clinicians, researchers and other healthcare professionals from around the globe. The audience is drawn from hospitals, cancer treatment centers and academic research facilities worldwide and spans radiation oncologists, medical physicists, dosimetrists, radiation therapists, oncology nurses, biologists and researchers.

Booth Pricing

Published booth-space pricing for the 2026 Annual Meeting is not confirmed in the sources reviewed. For reference, exhibitor badge personnel fees at the prior (2025) meeting were listed as follows: Member (all categories) $275 and Nonmember (all categories) $525. Exhibitors can also secure Expo Suites and Business Suites for private, extended access. Confirm current booth rates via the official exhibitor application and floor plan.

Registration

Registration for the 2026 ASTRO Annual Meeting is open, and SPARGO, Inc. is the only official registration provider of the ASTRO Annual Meeting.

Registration tiers are priced by deadline: Early-bird until June 25, 2026; Advance from June 26 to August 13, 2026; and Standard after August 13, 2026, with rates changing on each cutoff date at 11:59 p.m. Eastern time.

The in-person full conference package includes: admission to all education and scientific sessions, access to poster sessions, access to the Exhibit Hall, admission to the Exhibit Hall Networking Reception, admission to the PRO Program, access to the Physics Workshop on Saturday, continuing medical education (CME) credits, and onDemand access to session content until June 1, 2027. A virtual option offers top education and science, letting attendees livestream sessions, ask questions, access ePosters, earn CME credits and view onDemand recordings.

History

ASTRO was founded November 18, 1958, as the American Club of Therapeutic Radiologists by 58 radiation therapists who were looking for representation of their specialty outside of the American College of Radiology, the Radiological Society of North America and the American Roentgen Ray Society. Membership grew rapidly, and in 1962 the organization was officially incorporated in Colorado with a membership of 250. In November of 1970, the Society held its first independent scientific meeting in Phoenix, and in 1976 it sponsored its official journal, the International Journal of Radiation Oncology • Biology • Physics.

At ASTRO's 50th Annual Meeting in Boston in September 2008, the membership voted to change ASTRO's name to the American Society for Radiation Oncology while keeping the acronym, deciding that the term "therapeutic radiology" was outdated; the new name took effect in January 2009. The 2026 gathering in Boston is the society's 68th Annual Meeting.