Hotel & Travel
Hotel
Marriott Marquis Chicago
Headquarter Hotel │ 2121 South Prairie Ave., Chicago, IL 60616
$258-$288 + tax per night
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Travel
Letter of Invitation
Click the button below to fill out the form and have a letter of invitation generated for you.
Letter of Invitation
Airline Discount

Southwest Airlines is pleased to offer 2027 ASHRAE Winter Conference attendees discounted fares. To utilize the discount, book via SWABIZ® using this link. Discount valid for travel 1/20/2027 to 1/30/2027
Delta Air Lines is pleased to offer special discounts for travel to the 2026 ASHRAE Annual Conference. To book, please call Delta’s Conferences and Events desk at 800-328-1111 Monday–Friday, 8:00 a.m. – 8:00 p.m. (EST) and refer to Meeting Event Code NY53T, or click here to book online.
Domestic US Air Travel Policy – The REAL ID Act
Effective on January 22, 2018 all domestic US air travelers will be required to either:
- Have a driver’s license issued by a State that is compliant with the REAL ID Act or granted an extension; or
- Show an alternative form of acceptable identification such as a US Passport to board their flight.
Click here to learn more information
Ground Transportation Options
From Chicago O'Hare International Airport
- The Headquarters Hotel, the Marriott Marquis Chicago, is about 20 miles from the airport.
- The hotel is located at 2121 South Prairie Ave, Chicago, IL 60616
- Travel time varies based on transportation options.
- Public Transit (CTA Blue Line – Green Line)
- Route: Blue Line from O’Hare → Clark/Lake, transfer to Green Line → Cermak–McCormick Place
- Travel time: 1 hr–1 hr 15 min
- Cost: $4–$10
- Taxi
- Travel time: 26–32 min
- Estimated fare: $47–$75
- Rideshare (Uber/Lyft)
- Average UberX price: $56
- Travel time: 49 minutes
- Pickup zones are clearly marked at the airport
From Chicago Midway International Airport
- The Headquarters Hotel, the Marriott Marquis Chicago, is about 9 miles from the airport
- The hotel is located at 2121 South Prairie Ave, Chicago, IL 60616
- Travel time varies based on transportation options
- Public Transit (CTA Orange Line – Green Line)
- Route: Orange Line from Midway → Roosevelt, transfer to Green Line → Cermak–McCormick Place
- Travel time: 46–55 min
- Cost: $2–$5
- Taxi
- Travel time: 16–20 min
- Estimated fare: $25–$35
- Rideshare (Uber/Lyft)
- Average UberX price: $35.
- Travel time: 22 min.
- Pickup zones are clearly marked at the airport.