We’ve negotiated travel discounts and secured a limited number of reduced-rate hotel rooms to make your trip to Washington, D.C. affordable. Rooms at the group rate are limited and available on a first come, first-served basis. Book early for best selection and price »
Best Rate Pledge
We comparison shop to ensure our rates remain the lowest.
Ease your commitment — book now, pay later.
Escape from booking, change and cancellation fees.
Plans change. onPeak lets you make adjustments without penalty.
Buy-in-bulk hotel rates, with savings passed on to you.
Be sure to add your hotel rewards number when booking to receive points for your loyalty program.
Select your category and click on your desired hotel below.
*Rates shown above are the lowest available nightly rates for your selected arrival and departure dates.
View full hotel block information, including an interactive map of our hotels. Visit the booking website, choose your category and click the ‘Map’ button.
Full Group Control
Fully manage your group booking, large or small, with robust tools.
Book from live inventory and receive immediate confirmations.
Get peace of mind with support before, during and after your stay.
onPeak is the only housing service authorized to represent AAI for hotel bookings at IMMUNOLOGY™. While other hotel resellers may contact you offering housing for your trip, they are not endorsed by or affiliated with this AAI meeting.