Westin O'Hare's location is convenient for family and friends to celebrate your momentous occasion being within close proximity to O’Hare International airport, the Chicago Blue Line, Rivers Casino, and the new entertainment district in Rosemont. The Michigan Ballroom can accommodate 120 guests for a wedding reception. The LaSalle Ballroom comfortably accommodates 260 guests for a wedding reception. The Grand Ballroom provides an elegant backdrop for up to 700 guests for a wedding reception with its tall 23’ ceiling height and private pre-function space that also features windows.