News and Research

New Big Book of Travel Data Reveals $867 Billion in Revenue from Airlines, Hotels, Car Rental & OTAs – Press Release

August 16, 2022

Allianz Partners, a global leader in travel protection and consumer specialty insurance, and IdeaWorksCompany, the foremost consultant on ancillary revenue, have released the first edition of The Allianz Partners Big Book of Travel Data by IdeaWorksCompany.  This new publication, which expands on IdeaWorks’ former Big Book of Airline Data, provides a world of industry data for airlines, hotel groups, car rental companies, and online travel agencies, and is collated by alphabetical order, size, region, and more.  The 110-page “Big Book” is available free of charge via download at and The compilation of data allows for interesting comparisons; here is the list of revenue leaders in each category in 2021:

• $78 billion for OTAs: Group (gross bookings). China-based company operates the Ctrip, Skyscanner,, and Qunar websites.
• $39.7 billion for hotels: Marriott International (estimated room revenue).
• $29.9 billion for airlines: American Airlines (company revenue).
• $23.9 billion for car rental: Enterprise Holdings (company revenue). The company operates the Alamo, Enterprise, and National brands.

The Big Book of Travel Data is now available for sale in the store.

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