American College Of Surgeons - Inspiring Quality: Highest Standards, Better Outcomes

Support the ACS by booking your room through onPeak at one of the official Clinical Congress Hotels!

To obtain the necessary amount of meeting and exhibit space at the convention center and surrounding hotels, the American College of Surgeons (ACS) must commit to a minimum number of guest rooms. If that commitment is not met, the ACS will incur significant financial penalties and have difficulty obtaining sufficient meeting space in the future. This can have a major impact on the programs that the College is able to offer to you at Clinical Congress. You can help the ACS avoid penalties by booking your reservation through the official housing company, onPeak.


Hotel Discounts

We’ve negotiated with local Boston hotels and secured a limited number of reduced-rate hotel rooms to make your trip to Boston affordable. Through the travel experts at onPeak, rooms at the group rate are limited and available on a first come, first-served basis. Be sure to book early for best selection and price »

Support ACS
In addition to the benefits available to you, when you book through onPeak, you are supporting the College's ability to provide quality education in appealing destinations. We thank you for your support and for only booking through onPeak.

Pay Delay
Ease your commitment — book now, using a credit card as a guarantee & pay later when the Convention gets closer.

No Fees
Escape from booking, change and cancellation fees (as long as you do so within the cancellation window).

Exclusive Promotions
Take advantage of offers like free in-room Internet - exclusive for ACS guests.

Best Rate Pledge
We comparison shop to ensure ACS rates remain the lowest on the market.

Free Transportation*
Complimentary shuttle service to and from the Boston Convention Center.*
*Hotels within walking distance will not offer shuttle service.

Customer Service
onPeak is your advocate if a dispute or problem arises and is also available to assist with housing questions or concerns.

Book Your Hotel Here »

Be sure to add your hotel rewards number when booking to receive points for your loyalty program.

Group Reservations (9+ Rooms)

If you require 9 or more rooms on your peak night, please complete the online Group Housing Request Form.

Hotel assignments will be based on the date the form is submitted, hotel availability, block size, meeting space needs, and exhibitor's priority preference. Any exhibitor circumventing the ACS housing system will be assessed 10 penalty points.

Please Note: The total room nights requested on your block may be reduced by 20 percent without penalty up until Friday, August 10, 2018. Should the actual room nights utilized drop below 80 percent of the total room nights held after this date, your company agrees to pay the room rate plus applicable taxes for each room night that is not used by your company in excess of the allowable slippage. If payment is due under this provision, an invoice will be sent to your company, and payment will be required no later than 30 days after receipt of invoice.

Full Group Control
Fully manage your group booking, large or small, with robust tools.

Reservation Protection
Get peace of mind with support before, during and after your stay.

Contact onPeak

View the Frequently Asked Questions for more information about official hotels.

To contact onPeak by email, simply submit complete online form. You may also call onPeak directly at (855) 906-4456 (within U.S. only) or +1 (312) 527-7300 (International) between the hours of 8:00am and 5:00 pm CST, Monday through Friday.

Beware of Unauthorized Hotel Solicitations

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

Guarantee of Arrival

All reservations will require a credit card (American Express, VISA or MasterCard) for arrival guarantee purposes only. Credit cards will be charged directly by the hotel if your reservation is cancelled within 72 hours of arrival or in accordance with your hotel’s cancellation policy as noted on your confirmation.

Changes and Cancellations

Reservation changes and/or cancellations must be made with onPeak up until Tuesday, October 9, 2018 at 4:00 pm (Central). Beginning Wednesday, October 10, 2018, contact the hotel directly with any changes or cancellations. A cancellation penalty of one night’s room and tax will be charged for reservations cancelled within 72 hours of arrival date or in accordance with your hotel’s cancellation policy as noted on your reservation confirmation.

Suite Raffle

To thank you for booking your reservation through onPeak in the official housing block, you will be entered in a raffle to win an upgrade to a one-bedroom suite for your entire hotel stay, valid for reservations for dates of stay that include October 21-25, 2018. Your reservation must be made by September 25, 2018 in order to qualify for the raffle. Winner(s) will be notified via email the week of October 1, 2018. Click here to view full raffle details.