"The World Tourism Organization (UNWTO) is the United Nations agency responsible for the promotion of responsible, sustainable and universally accessible tourism."
Tourism policy, statistics on inbound and outbound US travel, research including programs in international air travel, monthly statistics sets. Most of the publications are free.
Links to statistics sets available from the Bureau of Transportation Statistics, including: airline financial, traffic and related data, and other per carrier fare, flight and passenger information.
The International Air Transport Association offers data on airline safety, traffic and passenger historical and forecast data. The industry association also offers selected data from the World Air Transport Statistics Yearbook.
IATA's Economics data include monthly analyses on air passengers, freight and premium traffic, and periodic industry economic and business confidence reports on the commercial airline industry.
National industry organization provides additional data and information regarding the economic, social and security issues affecting the airline industry. The annual Industry Review and Outlook is a great overview of the US industry.
Some free research in the reports section such as: 2016 Wage Watch Survey, U.S. Small Business Hotel Study, U.S. Conference of Mayors Tourism, Hotel and Lodging Survey.
