Airlines Association

• The Air Transport Association of America (ATA) is the premier trade organization of the principal U.S. airlines. ATA members transport more than 90 percent of all U.S. airline passenger and cargo traffic. 
• International Air Transport Association IATA is an international trade body, created over 60 years ago by a group of airlines. Today, IATA represents some 250 airlines comprising 94% of the international scheduled air traffic. The organisation also represents, leads and serves the airline industry in general. . 

Other Airline Groups and Associations

• The African Airlines Association 
• Air Transport Users Council  A London-based consumer watchdog for the airline industry with advise for air travellers on their rights and published educational material.
• Airline Association for Benchmarking & Measurement  A focused group of airline professionals that identifies best in class business practices surrounding airline industry issues for the benefit of the members.
• Airline Group of the International Federation of Operational Research Societies  This group seeks to forwarding the practice of Operational Research in airlines, with membership consisting of Operational Research workers who are also employed by recognized civil airlines, as well as people interested in the application of Operational Research to aviation problems.
• Airline Public Relations Organisation  The ARPO was founded to establish and maintain communication between the airline public relations practitioners for the purpose of exchanging information of mutual interest.
• Airline Suppliers Association A not-for-profit association dedicated to addressing the concerns of the aviation supply business.
• Arab Air Carriers Organization  AACO is the regional association of the Arab Airlines.
• Association of European Airlines  AEA is a trade organisation representing 27 European airlines.
• The Board of Airline Representatives in Germany e.V.  BARIG pursues the common interests of 106 international and national air carriers doing business in Germany.
• The Board of Airline Representatives in the UK  BAR UK is the trade association for the scheduled airline industry.
• The British Air Transport Association  BATA represents UK airlines to government, airports, and other industry regulators and suppliers.
• European Low Fares Airline Association  Their mission: To ensure that European policy and legislation promote free and equal competition to enable the continued growth and development of low fares into the future, allowing a greater number of people to travel by air.
• European Regions Airline Association  The ERAA is an intra-European air transport group, representing airlines, airports, airframe and engine manufacturers, and other suppliers.  The site includes a searchable database of airlines, airports, and suppliers, plus a downloadable version of Regional International monthly journal.
• International Flight Services Association  A global professional association created to serve the needs and interests of airline and railway personnel, inflight and rail caterers and suppliers responsible for providing passenger foodservice on regularly scheduled travel routes.
• National Air Carrier Association
• Regional Air Service Initiative  RASI seeks to promote an understanding of the critical role that regional aircraft play in U.S. commercial aviation and the essential air service they offer to the traveling public.  Information about the industry and it's history, aircraft performance, carriers, air service, and airports.
• Regional Airline Association  Represents U.S. regional airlines and the suppliers of products and services that support the industry.
• World Airline Entertainment Association Founded in 1979 as a nonprofit organization, the WAEA is a worldwide network, representing over 100 airlines and 250 airline suppliers and related companies, committed to excellence in inflight entertainment, communications and services, and the improvement of the airline passenger environment.
• World Airlines Clubs Association Promoting airline/interline clubs.