Courtyard Chicago Downtown/Magnificent Mile

165 East Ontario Street, Chicago, Illinois 60611 USA
+1 312-573-0800
  • Digital Check-In
  • Service Request
  • Fitness
  • Internet

Organise a meeting or event

Send your requirements to our expert planners for more information on pricing and room availability.

Planning meetings and events on the Magnificent Mile was never easier than with the prime location, experienced team, and excellent catering and audio-visual options at the Courtyard Chicago Downtown/Magnificent Mile.

  • 6

    Event rooms

  • 340 sq m

    Total event space

  • 290

    Capacity largest space

  • 6

    Maximum breakout rooms

Meet, Eat, & More

Catering packages, Audio-Visual offerings, and flexible floorplans await you when you plan your meetings at the Courtyard Magnificent Mile.

Scroll for more
Ontario B Meeting Room

About this venue

  • Create the perfect menu for your meeting with our on-site catering services

    Learn more
  • Impress your colleagues by hosting a successful meeting at our adaptable venues in downtown Chicago

  • Make sure your training seminar runs smoothly with the professional aid of our planning staff

  • Simplify your presentation experience when you rent our available AV equipment

  • Our Ontario Ballroom can accommodate up to 290 people at your company event

  • Before visiting the Magnificent Mile, finish up work tasks at our 24-hour business center

Plan an inspired event

Attendee Booking Tools

We can provide you with a unique complimentary Reservation Link that makes it easy for your guests to reserve their rooms.

  • Shared in an email
  • Embed in a website
  • Personalized with your group name, event dates, hotel, and special rates
  • Displayed in multiple languages on Marriott domains worldwide

Manage your event with ease

Group Lists

If you have a list of your guests, we can make reservations for all of them.

Rooming Lists

We can send you a report showing which of your guests have reserved rooms and when they plan to arrive.

Mobile Check-In

Guests can check in before their stay, receive instant alerts when their room is ready and check out by skipping the front desk.

Image Marriott Bonvoy
Reward Yourself

Earn up to 60,000 plus Elite status, discounts and more.

Equipment and services

Meeting equipment

AV equipment

Film projector

LCD projector


Overhead projector

Rear screen projection

Stage: portable


TV production service provider

Video camera

Meeting services

AV technician

Copy service





Security guard


Business equipment



Business services

Copy service

Fax service

Fee for each additional page of outgoing fax

Full-service business center

Network/Internet printing

Overnight delivery/pickup


High-speed internet access

Meeting rooms: Wired, Wireless


Afternoon Break

Coffee Break

Continental Breakfast


Full Breakfast




Floor plans

Capacity chart

Convert feet | Reset
  • Ontario Ballroom
  • 10.4x23.5x3
  • 243
  • 290
  • 174
  • 60
  • 63
  • 250
  • 210
  • Ontario A & B
  • 10.4x16.8x3
  • 174
  • 205
  • 130
  • 44
  • 50
  • 200
  • 150
  • Ontario B & C
  • 10.4x14.6x3
  • 152
  • 175
  • 110
  • 40
  • 46
  • 165
  • 120
  • Ontario A
  • 10.4x8.8x3
  • 92
  • 105
  • 64
  • 35
  • 30
  • 99
  • 80
  • Ontario B
  • 10.4x7.9x3
  • 82
  • 90
  • 56
  • 30
  • 25
  • 89
  • 70
  • Ontario C
  • 10.4x6.7x3
  • 69
  • 83
  • 50
  • 25
  • 20
  • 79
  • 60
  • Chicago Boardroom
  • 4.3x6.7x3
  • 29
  • 14
  • St. Clair
  • 6.7x4.3x3
  • 29
  • 10
  • Michigan
  • 5.5x7.3x3
  • 40
  • 48
  • 25
  • 20
  • 15
  • 40
  • 30

Room setup examples

Setup Example


Appropriate for large sessions and short lectures that do not require extensive note-taking. This is a convenient setup to use before breaking into discussion or role-playing groups because chairs can be moved.

Setup Example


Generally used for meals and sessions involving small group discussions. A five foot round table seats eight people comfortably. A six foot round table seats 10 people comfortably.

Setup Example

Schoolroom or Classroom

The most desirable setup for medium to large-size lectures. Requires a relatively large room. Tables provide attendees with space for spreading out materials and taking notes.

Setup Example

E-shape, U-shape and T-shape

Appropriate for groups of fewer than 40 people. These are best for interaction with a leader seated at the head of the setup. Audiovisual is usually best set up at the open end of the seating.

Setup Example


Stand-up social function where beverages and light foods are served. Foods may be presented on small buffet tables or passed by servers. May precede a meal function.

Setup Example

Ovals and Rounds

Generally used for meals and sessions involving small group discussions. A five foot round table seats eight people comfortably. A six foot round table seats 10 people comfortably.

Setup Example

Conference and Hollow Square

Appropriate for interactive discussions and note-taking sessions for fewer than 25 people. Many hotels have elegant "boardrooms" for 10 to 20 people, equipped with full audiovisual capabilities, a writing board, cork board and a flip chart.

back to top