A metasearch engine that searches other travel sites to find the best deals. Kayak allows users to compare prices for hotels, flights, and rental cars. Known for its price alerts and flexible date search options.

One of the largest online travel agencies (OTA), offering a wide range of hotels, flights, car rentals, and vacation packages. Expedia often has exclusive deals and loyalty program benefits.

Well-known for its 'Express Deals' and 'Name Your Own Price' features, which offer significant discounts if you're flexible with the specific hotel. Priceline also offers traditional hotel booking options. If you book an Express Deal and find a better price anytime up to midnight before you travel, you will get a 200% refund of the price difference!

A metasearch engine known for its visually appealing interface and comprehensive search results. Includes a 'flight insights' feature to help users find the best times to fly.

Booking.com is known for its user-friendly interface and free cancellation options on many bookings. If you find a lower advertised price for the same reservation available to the public (not a member or special rate), Booking.com will refund the difference up to 24 hours before your check-in date.

Part of the Expedia Group, Hotels.com offers a wide range of lodging options and a rewards program where you earn a free night for every 10 nights stayed.

Another OTA in the Expedia Group, Orbitz offers hotels, flights, car rentals, and vacation packages. It is similar to Expedia and Hotels.com but sometimes has slightly different deals or promotions. The Orbucks earning rate is much better for hotels than flights, and Orbucks can only be redeemed for hotels.

Known for its 'Hot Rates' deals, which offer significant discounts on hotels but hide the hotel name until after you book. Good for last-minute deals and if you're flexible with your accommodations.

A travel booking site exclusively for American Express cardholders. AmexTravel.com often offers additional perks and benefits for cardholders, such as bonus Membership Rewards points and free upgrades.

Popular in Asia, Agoda offers a wide selection of hotels, especially in Asian countries. Agoda often has competitive prices and deals in this region.

A long-standing OTA, Travelocity offers hotels, flights, cruises, and vacation packages. You can save money by booking a flight and hotel together.

While primarily known for its user reviews and ratings, Tripadvisor also functions as a metasearch engine, allowing users to compare hotel prices from various booking sites.

Part of Google's search engine, Google Hotels allows you to search for hotels, compare prices, and view user reviews. Google Hotels integrates with Google Maps for easy location searching.

Primarily known for flights, Skyscanner also has a hotel search function that compares prices from various booking sites.

Focuses on last-minute hotel deals. Good for spontaneous trips or finding discounts on unsold rooms.

Predicts future hotel and flight prices, advising users on when is the best time to book. Hopper sends notifications when prices are expected to drop.

A hotel metasearch engine that compares prices from multiple booking sites. Trivago is known for its extensive search filters and ability to narrow down your options based on specific criteria.