Trivago Search & Compare Hotels to Save Maximum on Hotel Room Booking. Trivago is a hotel search engine which allows users to compare hotel prices globally. It can compare prices from more than 400 booking sites in just a few clicks. Search across 1.8 million+ hotels in over 190 countries. You can book your hotel at the lowest price. You can find hotels based upon the locality, Guests review, Free Wifi, Spa, Pool, Pet-Friendly, Free breakfast, Pay at the hotel & Express Booking etc.