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

6155 N River Rd, Rosemont, IL 60018

With 14 event spaces across 11,440 sq ft1,063 m² of function space, Chicago Marriott Suites O'Hare is a flexible choice for meetings and celebrations in Rosemont. The largest room, Salons 1, 2 & 3 (Combined), hosts up to 150 guests. Full capacity details for each room are below.

Between them, the 14 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.

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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

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
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 2Plan this room →574 sq ft53 m²9 ft2.7 m204420252016
Rosemont 2 & 3 (combined)Plan this room →1,117 sq ft104 m²9 ft2.7 m508540504426
Rosemont 3Plan this room →543 sq ft50 m²9 ft2.7 m404224402218
Salon 1Plan this room →525 sq ft49 m²9 ft2.7 m254024302018
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.

Frequently asked questions

How many event spaces does Chicago Marriott Suites O'Hare have?
Chicago Marriott Suites O'Hare has 14 event spaces totaling 11,440 sq ft.
What is the largest event space at Chicago Marriott Suites O'Hare?
The largest event space at Chicago Marriott Suites O'Hare is Salons 1, 2 & 3 (Combined), which holds up to 150 guests across 1,575 sq ft.
What is the banquet capacity of Salons 1, 2 & 3 (Combined) at Chicago Marriott Suites O'Hare?
Salons 1, 2 & 3 (Combined) seats up to 100 guests in a banquet layout.
How many people fit in Salons 1, 2 & 3 (Combined) theater-style?
Salons 1, 2 & 3 (Combined) holds up to 150 guests in a theater setup.
What are the dimensions of Salons 1, 2 & 3 (Combined)?
Salons 1, 2 & 3 (Combined) measures 21 × 75 ft (1,575 sq ft) with 9 ft ceilings.

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