Chicago Marriott Suites O'Hare — Event Spaces, Floor Plans & Capacities

6155 N River Rd, Rosemont, IL 60018

9 rooms · largest space: Salons 1, 2 & 3 (Combined), 1,575 sq ft146 m²

With 9 event rooms, Chicago Marriott Suites O'Hare is a flexible choice for meetings and celebrations in Rosemont. The largest space is Salons 1, 2 & 3 (Combined), 1,575 sq ft146 m². It holds up to 150 guests. Full capacity details for each room are below.

Plan an event in Salons 1, 2 & 3 (Combined): open a free to-scale layout seating 60 at round tables in its 21 × 75 ft footprint at floors.live/start — no account needed.

Between them, the 9 rooms accommodate theater-style sessions for up to 150, seated banquets for 100 and standing receptions for 120. 7 smaller rooms suit breakouts and board meetings. Per-room dimensions and every published setup figure are listed below.

Plan your event in this space — free

Unverified listing — compiled from Chicago Marriott Suites O'Hare’s published information. Venue staff can verify capacities and setups free: floors.live/venues/us/illinois/rosemont/chicago-marriott-suites-o-hare/?claim=1.

Floor plans

Detailed floor plans for Chicago Marriott Suites O'Hare are published on the venue’s official site.

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Room capacities & dimensions

9 rooms, 14 configurations. Combined and divided set-ups are listed under their room.

Room capacities and dimensions for Chicago Marriott Suites O'Hare
SpaceSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
BoardroomPlan this room →500 sq ft46 m²8 ft2.4 m————12—
Hospitality SuitePlan this room →300 sq ft28 m²—————10—
King Conference SuitePlan this room →300 sq ft28 m²—————6—
Rosemont 1Plan this room →525 sq ft49 m²9 ft2.7 m202816201814
3 configurations with Rosemont 1
Combined and divided set-ups that include Rosemont 1
ConfigurationSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
Rosemont 1 & 2 (combined)Plan this room →940 sq ft87 m²9 ft2.7 m407236403424
Rosemont 1, 2, & 3 (combined)Plan this room →1,483 sq ft138 m²9 ft2.7 m7011548705634
Rosemont 2 & 3 (combined)Plan this room →1,117 sq ft104 m²9 ft2.7 m508540504426
Rosemont 2Plan this room →574 sq ft53 m²9 ft2.7 m204420252016
Rosemont 3Plan this room →543 sq ft50 m²9 ft2.7 m404224402218
Salon 1Plan this room →525 sq ft49 m²9 ft2.7 m254024302018
2 configurations with Salon 1
Combined and divided set-ups that include Salon 1
ConfigurationSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
Salon 1 & 2 or Salon 2 &3 (Combined)Plan this room →1,050 sq ft98 m²9 ft2.7 m808050804036
Salons 1, 2 & 3 (Combined)Plan this room →1,575 sq ft146 m²9 ft2.7 m100150771206060
Additional spaces (dimensions only) (2)
Additional spaces with published dimensions only at Chicago Marriott Suites O'Hare
SpaceSq ft / m²Ceiling
Chicago BoardroomPlan this room →523 sq ft49 m²8.7 ft2.7 m
Chicago RoomPlan this room →1,485 sq ft138 m²10 ft3 m

Figures from published venue data; blank cells mean the venue hasn’t published that number. Verify final counts with the venue.

Sizing another room? Try the event room capacity calculator or the floor plan scale converter.

Frequently asked questions

What is the floor plan of Chicago Marriott Suites O'Hare?

Chicago Marriott Suites O'Hare has 9 rooms. The largest space is Salons 1, 2 & 3 (Combined), 1,575 sq ft (21 × 75 ft). Every room's dimensions and seating capacity by setup are listed on this page. Chicago Marriott Suites O'Hare's own floor plans are published on its website, linked from this page.

How many event rooms does Chicago Marriott Suites O'Hare have?

Chicago Marriott Suites O'Hare has 9 rooms. 14 configurations are listed on this page.

What is the largest space at Chicago Marriott Suites O'Hare?

Salons 1, 2 & 3 (Combined), 1,575 sq ft: 21 × 75 ft, 100 banquet / 150 theater.

How many people can Chicago Marriott Suites O'Hare seat for a banquet?

Up to 100 in Salons 1, 2 & 3 (Combined). The next largest room, Salon 1 & 2 or Salon 2 &3 (Combined), seats 80.

What is the ceiling height at Chicago Marriott Suites O'Hare?

The highest ceiling is 10 ft, in Chicago Room.

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