Hotel Information

Reserve Now! Hyatt Regency O'Hare Chicago Hotel 

Official ACI Hotel Block

ACI Hotel Block Information

The Hyatt Regency O'Hare Chicago Hotel is the official headquarter hotel for the ACI Concrete Convention. All convention events will take place at the Hyatt Regency O'Hare Chicago Hotel.

The ACI hotel block is expected to sell out early. Reserve your hotel room online at the Hyatt Regency O'Hare Chicago Hotel. Reservations can also be made over the phone by calling +1.888.421.1442 and referencing the American Concrete Institute.

The ACI group rates are available until February 18, 2020, subject to room availability. All rates are based on single or double occupancy and must be guaranteed with a major credit card.

During your stay, you may be contacted at:

Hyatt Regency O'Hare Chicago Hotel
9300 W Bryn Mawr Ave
Rosemont, IL 60018
Phone: +1.847.696.1234

Check in: 3:00 pm CST
Check out: 12:00 pm CST

Reservation Problems

Please contact Elizabeth Zimmerman at elizabeth.zimmerman@concrete.org or +1.248.848.3186 if you have any difficulty making a reservation or would like to be added to the wait list for a room at ACI's official hotel.

Hotel Piracy

Please Note: Should you receive a phone call or email requesting you make your hotel reservation or upgrade your reservation through an outside party (or a party saying they represent the hotel) for a different rate, please do not comply and contact ACI Event Services at +1.248.848.3795 to report this. 

Accessible Rooms

To reserve an accessible hotel room, please call each hotel directly and reference the American Concrete Institute.

Government Rooms

ACI has a limited number of government rate hotel rooms at the Hyatt Regency O'Hare Chicago Hotel. You may book your government rate room at the Hyatt by clicking here.