Comparing the customer bases of Expedia and Booking.com, we can see that Expedia has 6,552 customer(s), while Booking.com has 4,700 customer(s). In the Reservation And Online Booking category, with 6,552 customer(s) Expedia stands at 3rd place by ranking, while Booking.com with 4,700 customer(s), is at the 4th place.