As the world's largest accommodation booking platform, Booking.com offers over 600,000 lodging options ranging from apartments and vacation homes to five-star hotels. The multilingual website provides excellent user experience with no prepayment required and free cancellation options. Users can also earn up to 4% cashback through Extrabux, with new users eligible for an additional $20 bonus.

Known for its unique Express Deals, Priceline reveals only price and hotel star ratings before payment, offering discounts up to 60%. The platform also provides flights, car rentals, and other services, making it ideal for budget-conscious travelers. New Extrabux users can earn up to 5% cashback.

Specializing in flight comparisons, this platform helps consumers find domestic and international budget airlines. The website doesn't support Chinese and currently offers no cashback program.

This platform recommends top U.S. attractions and activities, offering convenient ticket booking for over 500 products with up to 5% cashback.

Omio provides bus and train ticket bookings in the U.S. and Europe, with comparison features for various ticket options and up to 8% cashback.