Conferences

Selected Oncology Conferences in the United States, 2027

This is a sample of 10 major oncology conferences out of the 227 worldwide in our database for the 2027 calendar year. It includes the meeting dates, abstract deadlines and submission rules for conferences across gastrointestinal and genitourinary cancers to lung, brain and nursing meetings. Every date shows its status: confirmed by the organizer or estimated from earlier editions. Data is checked and updated daily by our team.

Planning calendar

Meetings and abstract deadlines at a glance

Solid marks are confirmed by the organizer; striped and dashed ones are still estimates. Select a meeting for its full page.

Conference
20262027JulAugSepOctNovDecJanFebMarAprMayJunJulAugSepOctNovDec
ASCO-GI - American Society of Clinical Oncology - Gastrointestinal Cancers Symposium
ASCO-GI · San Francisco · 4,050 attendees
Conference: Jan 21, 2027 to Jan 23, 2027 (confirmed); Abstract deadline: Sep 22, 2026 (confirmed); Late-breaking deadline: Oct 22, 2026 (confirmed) Jan 21–23
ASCO-GU - American Society of Clinical Oncology - Genitourinary Cancers Symposium
ASCO-GU · San Francisco · 4,500 attendees
Conference: Feb 11, 2027 to Feb 13, 2027 (confirmed); Abstract deadline: Oct 13, 2026 (confirmed); Late-breaking deadline: Nov 12, 2026 (confirmed) Feb 11–13
SSO-ACT - Society of Surgical Oncology - Advanced Cancer Therapies
SSO-ACT · Scottsdale · 2,000 attendees
Conference: Feb 13, 2027 to Feb 15, 2027 (copied); Abstract deadline: Oct 12, 2026 (confirmed); Late-breaking deadline: Nov 11, 2026 (estimated); Abstract notification: Nov 27, 2026 (confirmed) Feb 13–15
NCCN - National Comprehensive Cancer Network - Annual Conference
NCCN · San Diego · 1,675 attendees
Conference: Mar 19, 2027 to Mar 21, 2027 (confirmed); Abstract deadline: Oct 21, 2026 (confirmed); Abstract notification: Dec 15, 2026 (confirmed) Mar 19–21
HOPA - Hematology/Oncology Pharmacy Association - Annual Conference
HOPA · St. Louis · 1,700 attendees
Conference: Mar 31, 2027 to Apr 2, 2027 (confirmed); Abstract deadline: Sep 24, 2026 (confirmed); Late-breaking deadline: Nov 9, 2026 (confirmed) Mar 31–Apr 2
ONS - Oncology Nursing Society - Annual Congress
ONS · Washington · 3,600 attendees
Conference: Apr 14, 2027 to Apr 18, 2027 (confirmed); Abstract deadline: Sep 24, 2026 (confirmed); Late-breaking deadline: Jan 1, 2027 (confirmed); Abstract notification: Nov 23, 2026 (confirmed) Apr 14–18
ASCO - American Society of Clinical Oncology - Annual Meeting
ASCO · Chicago · 44,500 attendees
Conference: Jun 4, 2027 to Jun 8, 2027 (confirmed); Abstract deadline: Jan 26, 2027 (confirmed); Late-breaking deadline: Mar 8, 2027 (confirmed) Jun 4–8
WCLC - International Association for the Study of Lung Cancer - World Conference on Lung Cancer
WCLC · Denver · 5,000 attendees
Conference: Sep 11, 2027 to Sep 14, 2027 (confirmed); Abstract deadline: Mar 31, 2027 (estimated); Late-breaking deadline: Aug 4, 2027 (estimated) Sep 11–14
AACR-NCI-EORTC - American Association for Cancer Research, National Cancer Institute and European Organisation for Research and Treatment of Cancer - International Conference on Molecular Targets and Cancer Therapeutics
AACR-NCI-EORTC · Chicago · 2,000 attendees
Conference: Oct 26, 2027 to Oct 30, 2027 (confirmed); Abstract deadline: Jul 8, 2026 (confirmed) Oct 26–30
SNO - Society for Neuro-Oncology - Annual Meeting
SNO · Phoenix · 2,350 attendees
Conference: Nov 18, 2027 to Nov 21, 2027 (confirmed); Abstract deadline: Jun 1, 2027 (estimated); Late-breaking deadline: Sep 10, 2027 (estimated) Nov 18–21

On a computer, hover over a row to see every date and its status. Data as of October 22, 2026.

All 10 meetings by month

Dates as of October 22, 2026.

January 2027

ConferenceMeeting datesCityAbstract deadline
ASCO-GIGastrointestinal Cancers Symposium January 21–23, 2027 Confirmed San Francisco September 22, 2026 Confirmed

February 2027

ConferenceMeeting datesCityAbstract deadline
ASCO-GUGenitourinary Cancers Symposium February 11–13, 2027 Confirmed San Francisco October 13, 2026 Confirmed
SSO-ACTAdvanced Cancer Therapies February 13–15, 2027 Not yet announced Scottsdale October 12, 2026 Confirmed

March 2027

ConferenceMeeting datesCityAbstract deadline
NCCNAnnual Conference March 19–21, 2027 Confirmed San Diego July 13, 2026 Confirmed
HOPAAnnual Conference March 31 – April 2, 2027 Confirmed St. Louis July 13, 2026 Confirmed

April 2027

ConferenceMeeting datesCityAbstract deadline
ONSAnnual Congress April 14–18, 2027 Confirmed Washington August 10, 2026 Confirmed

June 2027

ConferenceMeeting datesCityAbstract deadline
ASCOAnnual Meeting June 4–8, 2027 Confirmed Chicago January 26, 2027 Confirmed

September 2027

ConferenceMeeting datesCityAbstract deadline
WCLCWorld Conference on Lung Cancer September 11–14, 2027 Confirmed Denver March 31, 2027 Estimated

October 2027

ConferenceMeeting datesCityAbstract deadline
AACR-NCI-EORTCInternational Conference on Molecular Targets and Cancer Therapeutics October 26–30, 2027 Confirmed Chicago July 8, 2026 Confirmed

November 2027

ConferenceMeeting datesCityAbstract deadline
SNOAnnual Meeting November 18–21, 2027 Confirmed Phoenix June 1, 2027 Estimated
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