Hotel Reservations

Discounted Reservation Deadline: 
May 11, 2018

Booking a group of 30 or more? Click Here

Official Housing Company  

OnPeak has been selected as the Official ATC Housing Company.  ATC has negotiated hotel rooms at a discounted rate available through the online reservation link.  Rooms are limited and available on a first come, first-serve basis.  

Benefits of Booking in the ATC Block

  • Block hotels have been researched by ATC to ensure they meet our standards.
  • Assistance is available in advance and on-site for problems with ATC block hotels.
  • Block hotels have friendlier booking terms: no change fees, no full prepayment.
  • It saves money. Rates and terms are guaranteed.
  • It’s the right thing to do to support the conference. Meeting space rental and future room rates are based on in-the-block bookings, helping to keep the overall cost of registration lower. Future cost savings for all depends on strong in-the-block bookings.

ATC Hotels & Rates

To secure these ATC negotiated rates, you must book housing through OnPeak. Rooms are limited and available on a first come, first-serve basis. 

Sheraton Seattle $269
Grand Hyatt Seattle $309
Hyatt Olive 8 $309
Westin Seattle $265
W Seattle $285
Fairmont Olympic $280

Beware of Unauthorized Hotel Solicitations

Note that OnPeak is the only official housing company associated with our event. While other hotel resellers may contact you offering housing for your trip, they are not endorsed by or affiliated with the show. Beware that entering into financial agreements with non-endorsed companies can have costly consequences.

Travel Information

The ATC has designated Crystal Travel Management Company as their official travel agent for the Congress. To make a flight reservation, contact Sean Kelly at Crystal Travel Management Company at 1-888-327-2862 or via email at

To obtain the most competitive rates, please refer to the ATC meeting when making reservations.  Fare restrictions and cancellation penalties may apply to your travel.  Be sure to book your flight well in advance to receive the best rates and to have the agent advise you of any applicable restrictions.  

Group Housing

Groups of 30 or more people are required to submit an official Group Housing Form

In order for ATC to secure lower rates and an adequate number of rooms in any city, we must sign attrition clauses with the individual hotels. These are contractual agreements hotels require to protect against losses from no shows and cancellations after the cut-off date. In the past, attrition penalties have been incurred to ATC due to hotel rooms either being cancelled or simply unused. As a result, before receiving housing confirmations, ATC is requiring that all companies with a block of 30 or more rooms read and sign an attrition agreement protecting ATC against these preventable charges. Once your hotel requests and signed attrition agreement have been received by onPeak, you will be sent a confirmation letter from OnPeak.

For assistance with a group housing request, please email or call 800-438-4326 (Mon-Fri, 9:00 am - 5:00 pm EST).


For questions on housing or assistance with your reservations, please call 800-438-4326 (Mon-Fri, 9:00 am - 5:00 pm EST).