Chicago Marriott Suites O'Hare — Event Spaces & 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.
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
| Space | Sq ft / m² | Ceiling | Banquet | Theater | Classroom | Reception | Conference | U-Shape |
|---|---|---|---|---|---|---|---|---|
| BoardroomPlan this room → | 500 sq ft46 m² | 8 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 m² | 9 ft2.7 m | 20 | 28 | 16 | 20 | 18 | 14 |
| Rosemont 1 & 2 (combined)Plan this room → | 940 sq ft87 m² | 9 ft2.7 m | 40 | 72 | 36 | 40 | 34 | 24 |
| Rosemont 1, 2, & 3 (combined)Plan this room → | 1,483 sq ft138 m² | 9 ft2.7 m | 70 | 115 | 48 | 70 | 56 | 34 |
| Rosemont 2Plan this room → | 574 sq ft53 m² | 9 ft2.7 m | 20 | 44 | 20 | 25 | 20 | 16 |
| Rosemont 2 & 3 (combined)Plan this room → | 1,117 sq ft104 m² | 9 ft2.7 m | 50 | 85 | 40 | 50 | 44 | 26 |
| Rosemont 3Plan this room → | 543 sq ft50 m² | 9 ft2.7 m | 40 | 42 | 24 | 40 | 22 | 18 |
| Salon 1Plan this room → | 525 sq ft49 m² | 9 ft2.7 m | 25 | 40 | 24 | 30 | 20 | 18 |
| Salon 1 & 2 or Salon 2 &3 (Combined)Plan this room → | 1,050 sq ft98 m² | 9 ft2.7 m | 80 | 80 | 50 | 80 | 40 | 36 |
| Salons 1, 2 & 3 (Combined)Plan this room → | 1,575 sq ft146 m² | 9 ft2.7 m | 100 | 150 | 77 | 120 | 60 | 60 |
Additional spaces (dimensions only) (2)
| Space | Sq ft / m² | Ceiling |
|---|---|---|
| Chicago BoardroomPlan this room → | 523 sq ft49 m² | 8.7 ft2.7 m |
| Chicago RoomPlan this room → | 1,485 sq ft138 m² | 10 ft3 m |
Figures from published venue data; blank cells mean the venue hasn’t published that number. Verify final counts with the venue.