In 2024, the market size of the online travel industry worldwide amounted to an estimated *** billion U.S. dollars, showing an annual increase in revenue of *** percent. This figure was forecast to grow steadily in the following years, reaching an estimated *****trillion U.S. dollars by 2030. What are the leading online travel companies worldwide? When looking at the market capitalization of leading online travel companies worldwide, Booking Holdings reported the highest figure in 2025, ahead of Airbnb and Trip.com Group. The firm, which owns brands like Booking.com, Kayak, and Priceline, also topped the ranking of the leading online travel agencies (OTAs) worldwide based on revenue in 2024. Expedia Group, which operates brands like Expedia, Hotels.com, and Vrbo, reported the second-highest revenue that year. How big is the global travel and tourism market? According to Statista Market Insights, the travel and tourism market’s revenue worldwide – including hotels, package holidays, vacation rentals, camping, and cruises – amounted to over *** billion U.S. dollars in 2024. Breaking down global travel and tourism revenue by sales channels highlights the leading role played by the online market, with online transactions generating over ********** of the total sales value.

According to estimates by Statista Digital Marketing Insights, Uber held the highest share of the travel app market in the United States in 2022. That year, the company accounted for ** percent of total revenue in that segment. When focusing on online travel agencies (OTAs), Vrbo and Booking.com recorded the highest figures, generating ***** percent and ***** percent of total travel app revenue in the U.S., respectively.

The Airbnb mobile app reported the highest number of downloads worldwide among the selected online travel agency and travel metasearch service apps in 2024. That year, the Airbnb app recorded almost ** million aggregated downloads on iOS and Google Play. The Booking.com app was the second most downloaded app in the ranking, with over ** million downloads. What are the most visited travel websites worldwide? While Booking.com ranked second in terms of app downloads, it was by far the most visited travel and tourism website worldwide in 2024, ranking ahead of tripadvisor.com and trip.com. When breaking down website visits to Booking.com by country, the United States, Germany, and the United Kingdom accounted for the most online traffic that year. What are the leading online travel agencies in the world? Booking.com is the flagship brand of Booking Holdings, a U.S.-based travel and tourism company that also owns Priceline, Agoda, Kayak, and OpenTable. In 2024, Booking Holdings was the leading online travel agency worldwide based on revenue. Competitor Expedia Group, whose travel brands include Expedia, Hotels.com, and Vrbo, reported the second-highest figure that year.