KAYAK is a travel search engine. KAYAK Flights and Hotels are two of its key features. It doesn[SQ]t actually *sell* flights or hotels directly. Instead, it searches across a vast network of travel sites (like Expedia, Booking.com, airlines[SQ] websites, etc.) to find you the best prices and options for flights and hotels based on your search criteria (dates, locations, number of travelers, etc.). Think of it like a Google for travel, but specifically focused on finding the best deals. Once you find a flight or hotel you like on KAYAK, you[SQ]ll be redirected to the actual booking site to complete your purchase.