Marriott Chicago O’Hare/Rosemont

Transform the way you meet at Chicago Marriott O’Hare where an amazing $40M renovation has made it the perfect landing place for you and your guests. Inspire an unparalleled performance in our completely modernized meeting spaces. 34,800 square feet of flexible event space that can cater to groups of all shapes and sizes. Invite up to 650 guests to the beautiful and inviting atmosphere of our brand-new 6,400 square-foot O’Hare Ballroom featuring 14-foot ceilings, natural light and state-of-the-art audio visual capabilities. Our hotel also features a 9,288 square foot Grand Ballroom, divisible into seven sections and a 9,633 square foot Chicago Ballroom also divisible into seven sections. Our hotel features three distinctive ballrooms all located on the same level providing meeting attendees ideal flexibility and meeting flow. And with the help of our award-winning banquet and catering team, you can plan a unique menu to suit even the most particular tastes.