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The Allegro Royal Sonesta Hotel Chicago Loop

171 W. Randolph St., Chicago, IL, USA, 60601
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11/21/2025 - 04/30/2026
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About us

Take a step back in time at The Allegro Royal Sonesta. Voted a top Chicago hotel by the readers of Condé Nast Traveler, the rhythm of The Allegro Royal Sonesta is the beat of Chicago itself – unique, exciting and unmistakable – where old school glamour meets a modern sophistication and timeless elegance melds into a confident urban vibe. Chic and historic, our 483 guest rooms and suites exude sophisticated comfort, leaving you relaxed and rejuvenated. Relish captivating views of the bustling Randolph Street below and, in some rooms, over 550 square feet of space to unwind. The hotel was named one of the Best Hotels in Chicago for Design Savvy Travelers by Architectural Digest. From grand receptions in the Walnut Ballroom to intimate meetings in the Savoy Room, every space at The Allegro is designed to inspire collaboration and celebration. Hotel Highlights - Historic hotel situated in the Chicago Loop district - 483 guest rooms and suites - Complimentary morning coffee in the lobby and tea and scones in the afternoon - Legato Lounge, a classic American restaurant with contemporary flair - 14,900 square feet of meeting and event space in 15 meeting rooms - Pet friendly - 30 minutes from Chicago O’Hare International Airport

Venue Details

ChainSonesta
BrandRoyal Sonesta
Built1926
Renovated2015
Total meeting space15,000 sq. ft.
Guest Rooms483
Venue typeHotel

Industry Ratings

Northstar
AAA

Awards

Industry awards
Voted a Top Hotel in Chicago by the Readers of Conde Nast Traveler. Named one of the Best Hotels in Chicago for Design Savvy Travelers by Architectural Digest. Awarded a Certificate of Excellence Award by TripAdvisor. Featured in Travel Channel’s Chicago Hotel Guide. Named One of the Six Most Historic and Architecturally Interesting Hotels in Chicago by Fodor's Travel Guide. Bar Allegro Named One of Chicago's Best Bars by Conde Nast Traveler.

Amenities

Room features and guest services
  • Calls (local)
  • Calls (toll-free)
  • Concierge services
  • Internet access
  • Luggage storage
  • View (urban)
  • Voicemail box
Facilities
  • Extended stay
  • Onsite catering
  • Onsite restaurant
  • Onsite security
  • Pet friendly
  • Space (private)
  • Wheelchair accessible

Need dates

Priority windows that venues prefer for hosting events

Dec 5, 2025 - Mar 31, 2026

Seasonal Availability

Do you want to know if your event is during the high or low season? Check the season availability for this hotel.
High season
May 01 - Jun 30Sep 01 - Oct 31
Shoulder season
Apr 01 - Apr 30Jul 01 - Aug 31Nov 01 - Nov 20
Low season
Jan 01 - Mar 31Nov 21 - Dec 31

Meeting rooms

Total meeting space
15,000 sq. ft.
Largest room
3,400 sq. ft.
Space (private)
14,000 sq. ft.
Meeting rooms
15
Second largest room
2,894 sq. ft.
Standing capacity
300
Seating capacity
483

Floor Plans

Download floor plans for this venue.
Explore Meeting Rooms
Explore Meeting Rooms
Find the perfect room with setup charts and interactive 3D floor plans.

Meeting space

Meeting room floor plans

Rialto I Download PDF
Rialto I
Rialto Download PDF
Rialto
Historic Walnut Ballroom Download PDF
Historic Walnut Ballroom
Palladium Download PDF
Palladium
Savoy Download PDF
Savoy
Imperial Download PDF
Imperial

Guest rooms

Total guest rooms
483
Single (1 bed)
353
Double (2 beds)
46
Suites
50
Tax rate
17.39%

Location

Getting Here

From Chicago O’Hare International Airport Take I-90 East to Washington. Turn left onto Washington. Turn left onto LaSalle. Turn left onto West Randolph. Go one block. The Allegro Royal Sonesta Hotel Chicago Loop is on the south side of the street at 171 West Randolph Street.
Distance from airport 18 mi
Parking in the area
Paid parking
( $55.00/day )
Valet parking
( $77.00/day )

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Additional Information

Cancellation Policy

Cancel 24 hours prior to check-in time to avoid a penalty of one night room and tax.

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The Allegro Royal Sonesta Hotel Chicago Loop Frequently Asked Questions

Explore frequently asked questions from the The Allegro Royal Sonesta Hotel Chicago Loop regarding Health and Safety, Sustainability, and Diversity and Inclusion

Sustainable Practices

Please provide comments or a link to any publicly communicated The Allegro Royal Sonesta Hotel Chicago Loop's sustainability or social impact goals/strategy.
Many new strategies and daily initiatives will be introduced to run our hotels more efficient and earth friendly. We have reduced paper by introducing communication via electronic technology. Energy and water reduction will continue to be a top priority.
Does The Allegro Royal Sonesta Hotel Chicago Loop have a strategy that focuses on the elimination and diversion of waste (i.e. plastics, papers, cardboard, etc.)? If yes, please elaborate on your strategy of elimination and diversion of waste.
Yes, our parent company, RMR Group, focuses on reduction of emission, energy, water and waste within its portfolio

Diversity and Inclusion

For US hotels only, is The Allegro Royal Sonesta Hotel Chicago Loop and/or parent company certified as a 51% diverse owned business enterprise (BE)? If yes, please indicate which one of the following you are certified as:
NA
If applicable, could you please provide a link to The Allegro Royal Sonesta Hotel Chicago Loop's public report on their commitments and initiatives related to diversity, equity, and inclusion?
na

Health and Safety

Were practices at The Allegro Royal Sonesta Hotel Chicago Loop developed based on health service recommendations from public governmental entities or private organizations? If Yes, please list which organizations were used to develop these practices.
Yes, WHO, CDC, ECOLAB INC
Does The Allegro Royal Sonesta Hotel Chicago Loop clean and sanitize public areas and publicly accessible facilities (i.e. meeting rooms, restaurants, elevator banks, etc.)? If yes, describe any new measures that are taken.
Yes, Rigorous cleaning protocols and use of hospital grade disinfectants (CDC approved), public areas santized at least every 3 hours. Electrostatic sprayers used in public areas
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