Save up to 20% on Room Rates when you book your vacation at least two weeks in advance at Hilton.com. This offer works at Hilton, Waldorf Astoria, Conrad, DoubleTree, and Hilton Garden Inn hotels and resorts. One potential vacation in late February gives you a discounted rate of $109 per night at the Hilton Garden Inn near the Magnificent Mile in Chicago. You can choose your own vacation dates and destinations at Hilton.com. Some hotels require a minimum stay. Taxes, fees, and restrictions apply.