MGM Grand Hotel & Casino
4,994 rooms
Business rate available
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Compare the biggest hotels in the USA
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 Across the USA
MGM Grand Hotel & Casino in Las Vegas, NV leads the list of hotels you can book through Engine in the U.S., with 4994 rooms. Luxor Hotel and Casino (4400 rooms) and The Venetian Resort Las Vegas (4028 rooms) follow among the biggest hotels in the USA, all in Las Vegas. Teams, groups, and conference attendees book these properties when they need a very large number of rooms under one roof.
Conferences, corporate events, and group travel depend on hotels that can hold a lot of people in one place. Across the United States, the biggest hotels tend to cluster in places like Las Vegas, the Orlando theme-park area, Atlantic City, and cities with large convention centers. These hotels serve organizations of every size and industry that need room blocks for a team, a meeting, or an event. Engine lists them alongside the rest of the country's hotels, and Engine Groups handles bookings of 9 or more rooms.
Frequently asked questions
How do I book a large block of rooms for a national conference or team event?
For 9 or more rooms, Engine Groups handles the booking. For 8 rooms or fewer, you can book self-serve on the platform. You can search and compare large hotels like MGM Grand Hotel & Casino or Luxor Hotel and Casino on Engine first.
Where are the biggest hotels in the USA?
The biggest hotels tend to cluster in Las Vegas, the Orlando theme-park resorts, Atlantic City, and large convention-center hotels in big cities. The top three on Engine are all in Las Vegas. MGM Grand Hotel & Casino has 4994 rooms, Luxor Hotel and Casino has 4400, and The Venetian Resort Las Vegas has 4028.
How does billing work for large or multi-city hotel bookings?
Engine offers consolidated invoicing, so multiple bookings can roll up into one invoice. You can choose from multiple payment options, and there is no membership fee. That makes stays across several cities easier to track.
How far ahead should a group book a room block at one of the largest hotels?
Book as early as you can, ideally several months out for a big group. Large hotels in Las Vegas and other convention cities can fill up around big events. Booking early gives you more choice of dates and room types.
What counts as one of the biggest hotels in the country?
This list ranks hotels by room count and capacity. It covers the biggest hotels you can book through Engine, not every hotel in the U.S., so some large resorts are not included. MGM Grand Hotel & Casino leads the list with 4994 rooms.
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.