Hotel Information
The Hyatt Regency is currently SOLD OUT Friday, March 27, 2026, through Wednesday, April 1, 2026, with limited availability on other nights. The Westin O’Hare currently has full availability at the group rate.
The official hotel for the ACI Concrete Convention is the Hyatt Regency O'Hare Chicago Hotel. All convention events will take place at this hotel.
ACI Hotel Block
Hyatt Regency O'Hare Chicago Hotel
Sold Out: Fri-Wed; Limited Availability other nights |
Rate: $232 USD + tax
(ROH single/double)
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The Westin O’Hare
Full Availability |
Rate: $209 USD + tax
(ROH single/double)
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Hotel Block Information
Hyatt Regency O'Hare Chicago
The ACI group rate for the Hyatt Regency O'Hare Chicago is available until March 4, 2026, subject to room availability. The $232 USD rate is based on a standard single or double occupancy run of house room. The room rate may increase if you select an upgraded room option. All reservations must be guaranteed with a major credit card. You may cancel your reservation up to 48 hours prior to check-in without penalty. After 48 hours, one night’s room and tax will be charged.
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: 11:00 am CST
Cancellation Policy
You may cancel your reservation at the Hyatt Regency O'Hare Chicago up to 48 hours prior to arrival without penalty. After 48 hours, one night’s room and tax will be charged.
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.
The Westin O’Hare
The Westin O'Hare is the official overflow hotel for the ACI Concrete Convention. A shuttle bus will run between the Westin and the Hyatt during peak commute times. The ACI group rate for the Westin O’Hare is available until March 4, 2026, subject to room availability. The $209 USD rate is based on a standard single or double occupancy run of house room. The room rate may increase if you select an upgraded room option. All reservations must be guaranteed with a major credit card. You may cancel your reservation up to 48 hours prior to check-in without penalty. After 72 hours, one night’s room and tax will be charged.
During your stay, you may be contacted at:
- Westin O’Hare
6100 North River Rd, Rosemont, IL, USA 60018
Phone: +1.847.698.6000
Check in: 3:00 pm CST | Check out: 12:00 pm CST
Cancellation Policy
You may cancel your reservation at the Westin O'Hare up to 48 hours prior to arrival without penalty. After 72 hours, one night’s room and tax will be charged.
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 the hotel directly and reference the American Concrete Institute.
Government Rooms
Click here to reserve a government-rate room. ACI has a small block of government-rate rooms at the Hyatt Regency O'Hare Chicago Hotel. If you have any questions regarding ACI’s government room block, please contact Michaela Moore at michaela.moore@concrete.org or +1.248.848.3785 for further assistance.