Marriott Tulsa Hotel Southern Hills puts you within a 15-minute drive of River Spirit Casino Resort and Tulsa Expo Center. You can visit the spa to indulge in massages, body wraps, or aromatherapy, and American cuisine is served at Tallgrass Grille, which is open for breakfast, lunch, and dinner. Other highlights include an indoor pool, a free airport shuttle, and a bar/lounge. Fellow travelers love the helpful staff.