Selected Oncology Conferences in the United States, 2027

This is a sample of 11 major oncology conferences out of the 234 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.

Selected Oncology Conferences by Month, 2027

Dates as of November 12, 2026.

January 2027

ConferenceDates and locationEst. attendeesAbstract submission
ASCO-GIAmerican Society of Clinical Oncology - Gastrointestinal Cancers Symposium January 21–23, 2027 ConfirmedSan Francisco 4,050 Deadline September 22, 2026 PassedLate-breaking October 22, 2026 PassedSubmission rules at a glance

February 2027

ConferenceDates and locationEst. attendeesAbstract submission
ASCO-GUAmerican Society of Clinical Oncology - Genitourinary Cancers Symposium February 11–13, 2027 ConfirmedSan Francisco 4,500 Deadline October 13, 2026 PassedLate-breaking November 12, 2026 ConfirmedSubmission rules at a glance
SSO-ACTSociety of Surgical Oncology - Advanced Cancer Therapies February 13–15, 2027 ConfirmedScottsdale 2,000 Deadline October 12, 2026 PassedLate-breaking November 11, 2026 PassedSubmission rules at a glance

March 2027

ConferenceDates and locationEst. attendeesAbstract submission
NCCNNational Comprehensive Cancer Network - Annual Conference March 19–20, 2027 ConfirmedSan Diego 1,675 Deadline October 21, 2026 PassedSubmission rules at a glance
HOPAHematology/Oncology Pharmacy Association - Annual Conference March 31 – April 2, 2027 ConfirmedSt. Louis 1,700 Deadline September 24, 2026 PassedLate-breaking November 9, 2026 PassedSubmission rules at a glance

April 2027

ConferenceDates and locationEst. attendeesAbstract submission
AACRAmerican Association for Cancer Research - Annual Meeting April 2–7, 2027 ConfirmedOrlando 19,500 Deadline November 10, 2026 PassedLate-breaking January 6, 2027 ConfirmedSubmission rules at a glance
ONSOncology Nursing Society - Annual Congress April 14–18, 2027 ConfirmedWashington 3,600 Deadline September 24, 2026 PassedLate-breaking January 1, 2027 ConfirmedSubmission rules at a glance

June 2027

ConferenceDates and locationEst. attendeesAbstract submission
ASCOAmerican Society of Clinical Oncology - Annual Meeting June 4–8, 2027 ConfirmedChicago 44,500 Deadline January 26, 2027 ConfirmedLate-breaking March 8, 2027 ConfirmedSubmission rules at a glance

September 2027

ConferenceDates and locationEst. attendeesAbstract submission
WCLCInternational Association for the Study of Lung Cancer - World Conference on Lung Cancer September 11–14, 2027 ConfirmedDenver 5,000 Deadline March 31, 2027 EstimatedLate-breaking August 4, 2027 Estimated

October 2027

ConferenceDates and locationEst. attendeesAbstract submission
AACR-NCI-EORTCAmerican Association for Cancer Research, National Cancer Institute and European Organisation for Research and Treatment of Cancer - International Conference on Molecular Targets and Cancer Therapeutics October 26–30, 2027 ConfirmedChicago 2,000 Deadline July 25, 2027 EstimatedLate-breaking September 14, 2027 Estimated

November 2027

ConferenceDates and locationEst. attendeesAbstract submission
SNOSociety for Neuro-Oncology - Annual Meeting November 18–21, 2027 ConfirmedPhoenix 2,350 Deadline June 1, 2027 EstimatedLate-breaking September 10, 2027 Estimated

Conferences 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 Gastrointestinal Cancers Symposium
San Francisco · 4,050 attendees
Conference: Jan 21, 2027 to Jan 23, 2027 (confirmed by the organizer); Abstract deadline: Sep 22, 2026 (confirmed by the organizer); Late-breaking deadline: Oct 22, 2026 (confirmed by the organizer) Jan 21–23
ASCO-GU Genitourinary Cancers Symposium
San Francisco · 4,500 attendees
Conference: Feb 11, 2027 to Feb 13, 2027 (confirmed by the organizer); Abstract deadline: Oct 13, 2026 (confirmed by the organizer); Late-breaking deadline: Nov 12, 2026 (confirmed by the organizer) Feb 11–13
SSO-ACT Advanced Cancer Therapies
Scottsdale · 2,000 attendees
Conference: Feb 13, 2027 to Feb 15, 2027 (confirmed by the organizer); Abstract deadline: Oct 12, 2026 (confirmed by the organizer); Late-breaking deadline: Nov 11, 2026 (estimated from earlier editions); Abstract notification: Nov 27, 2026 (confirmed by the organizer) Feb 13–15
NCCN Annual Conference
San Diego · 1,675 attendees
Conference: Mar 19, 2027 to Mar 20, 2027 (confirmed by the organizer); Abstract deadline: Oct 21, 2026 (confirmed by the organizer); Abstract notification: Dec 15, 2026 (confirmed by the organizer) Mar 19–20
HOPA Annual Conference
St. Louis · 1,700 attendees
Conference: Mar 31, 2027 to Apr 2, 2027 (confirmed by the organizer); Abstract deadline: Sep 24, 2026 (confirmed by the organizer); Late-breaking deadline: Nov 9, 2026 (confirmed by the organizer) Mar 31–Apr 2
AACR Annual Meeting
Orlando · 19,500 attendees
Conference: Apr 2, 2027 to Apr 7, 2027 (confirmed by the organizer); Abstract deadline: Nov 10, 2026 (confirmed by the organizer); Late-breaking deadline: Jan 6, 2027 (confirmed by the organizer) Apr 2–7
ONS Annual Congress
Washington · 3,600 attendees
Conference: Apr 14, 2027 to Apr 18, 2027 (confirmed by the organizer); Abstract deadline: Sep 24, 2026 (confirmed by the organizer); Late-breaking deadline: Jan 1, 2027 (confirmed by the organizer); Abstract notification: Nov 23, 2026 (confirmed by the organizer) Apr 14–18
ASCO Annual Meeting
Chicago · 44,500 attendees
Conference: Jun 4, 2027 to Jun 8, 2027 (confirmed by the organizer); Abstract deadline: Jan 26, 2027 (confirmed by the organizer); Late-breaking deadline: Mar 8, 2027 (confirmed by the organizer) Jun 4–8
WCLC World Conference on Lung Cancer
Denver · 5,000 attendees
Conference: Sep 11, 2027 to Sep 14, 2027 (confirmed by the organizer); Abstract deadline: Mar 31, 2027 (estimated from earlier editions); Late-breaking deadline: Aug 4, 2027 (estimated from earlier editions) Sep 11–14
AACR-NCI-EORTC International Conference on Molecular Targets and Cancer Therapeutics
Chicago · 2,000 attendees
Conference: Oct 26, 2027 to Oct 30, 2027 (confirmed by the organizer); Abstract deadline: Jul 25, 2027 (estimated from earlier editions); Late-breaking deadline: Sep 14, 2027 (estimated from earlier editions) Oct 26–30
SNO Annual Meeting
Phoenix · 2,350 attendees
Conference: Nov 18, 2027 to Nov 21, 2027 (confirmed by the organizer); Abstract deadline: Jun 1, 2027 (estimated from earlier editions); Late-breaking deadline: Sep 10, 2027 (estimated from earlier editions) Nov 18–21

On a computer, hover over a row to see every date and its status. Select a meeting for its page. Data as of November 12, 2026.

Other therapy and topic areas: Basic Science · Cardiovascular · Cell & Gene Therapy · Dentistry · Dermatology · Endocrinology & Metabolism · ENT (Otorhinolaryngology) · Epidemiology · Gastroenterology · Geriatrics · Gynecology · Health Economics & Outcomes Research · Health IT & Bioinformatics · Hematology · Immunology · Infectious Diseases · Internal, General & Emergency Medicine · Medical Devices · Nephrology & Urology · Neurology · Ophthalmology · Orthopedics · Pain & Anesthesia · Pathology · Pediatrics · Pharmacology & Toxicology · Pharmacy · Podiatry · Psychiatry · Rare & Orphan Diseases · Respiratory & Pulmonary · Rheumatology · Statistics & Data Science · Surgery · Transplantation · Veterinary · Wound Care & Burns

Planning Your 2027 Oncology Conferences?

This page shows only 11 of the 234 oncology conferences in our database for 2027. Get every 2027 oncology conference in an auto-refreshing Excel list with all of the key dates and a slide pack with our beautiful timeline and a summary slide for each conference.

Get a free sample planning pack