Oncology Nursing Society · Washington, DC · 2027
52nd Annual ONS Congress
01 Overview
The 52nd Annual ONS Congress runs April 14 to 18, 2027, at the Walter E. Washington Convention Center in Washington, DC. Over five days the Oncology Nursing Society offers clinical sessions, a learning hall and industry events for oncology nurses.
Registration opens in November 2026. Members pay $685 and nonmembers $1,095 when they register by February 25, 2027; regular rates are $835 and $1,335. Full-time RN students and retired RNs aged 65 or older have reduced rates ($345 early for students, $480 early for retirees), and one-day passes are sold for Thursday through Saturday ($480 member, $770 nonmember) and for Sunday.
Refunds are full, less a $100 fee, until February 25, 2027, and 50% until March 19, 2027. Housing is booked through Maritz, the official housing provider; the Marriott Marquis and the Westin Washington, DC Downtown are the headquarters hotels. The number of contact hours has not been published yet.
02 Registration fees
| Attendee | Early | Regular | Single Day |
|---|---|---|---|
| Non-members | $1,095until Feb 25 | $1,335 | $770 |
| Members | $685until Feb 25 | $835 | $480 |
| Students | $345until Feb 25 | $420 | — |
03 Key deadlines
- Feb 25, 2027
- Early-bird registration — Early-bird rate; also last day for a full refund less $100
04 Official hotels
- Marriott Marquis Washington, DC · HQ
- Group rate
- Westin Washington, DC Downtown · HQ
- Group rate
05 Questions
When is ONS Congress 2027?
It takes place Apr 14–18, 2027 in Washington, DC.
06 Similar meetings