Sale extended: still save 30% off Hotels, Cars, Cruises & Other Travel during the Summer of Adventure Sale now at Expedia. Find discounts for travel to 220 different destinations. This sale is still vaguely tied to the marketing for the Indiana Jones movie from earlier this summer. It's sponsored by Marriott, but the hotel discounts are available at a wide variety of hotel brands. There are some great deals to be found at popular city, beach, and resort locations with the full 30% off. Sale valid on travel through through September 5. You must book by July 31 to be eligible for the discounts, though. Book earlier for the widest selection.