Hyatt Regency Chicago
2,032 rooms
Business rate available
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Compare the biggest hotels in Illinois
Same order as the list above: largest guest-room count first. A dash means the hotel's data doesn't list that detail, not that it's unavailable.
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Group and Event Travel in Illinois
Hyatt Regency Chicago leads the list with 2032 rooms, the biggest you can book through Engine in the state. Palmer House a Hilton Hotel and Hyatt Regency McCormick Place Chicago follow among the biggest hotels in Illinois. Teams, groups, and conference and event attendees book these properties when they need many rooms under one roof.
Conferences, trade shows, and corporate events bring large groups to Illinois, with Chicago home to the McCormick Place convention center and Springfield serving as the state capital. The top three hotels on this list are all in Chicago, while the full list covers properties across the state. These hotels serve organizations of every size and industry booking room blocks. Engine lists them alongside the rest of the state's hotels, and Engine Groups handles bookings of 9 or more rooms.
Frequently asked questions
Which Illinois cities have the largest hotels?
Chicago holds the top three spots on this list. Hyatt Regency Chicago has 2032 rooms, Palmer House a Hilton Hotel has 1641, and Hyatt Regency McCormick Place Chicago has 1258. The list reflects the hotels you can book through Engine.
How do I book a block of rooms anywhere in Illinois for a large group?
For 9 or more rooms, Engine Groups handles the booking. For 8 rooms or fewer, you book self-serve on the platform. The same process works in Chicago or any other city in the state.
How does billing work for large or recurring bookings across Illinois cities?
Engine offers consolidated invoicing, so multiple bookings can land on one invoice. You can choose from multiple payment options, and there is no membership fee. That keeps stays in different cities easier to track.
What amenities do large hotels in Illinois usually offer?
Large hotels often have meeting space, event rooms, dining, and parking, though this varies by property. Check each listing on Engine for details. Compare a few before you book for a group.
Why choose a bigger hotel in Illinois for a conference or company event?
A bigger hotel can house your whole group in one building, which makes sessions and meals easier to plan. Hyatt Regency Chicago leads the list with 2032 rooms. Many larger properties also have meeting or event space, though that varies by property.
Why don't you show rates for these hotels?
Hotels give Engine rates they only allow us to show business travelers, so a public page cannot list them. Create a free account with your work email to see them.
Is Engine free?
Yes. An Engine account is 100% free and without commitment, and you can leave anytime. Sign up with your work email.