What IATA means
IATA describes its mission as to represent, lead and serve the airline industry. It is an industry body owned by its member airlines, not a government regulator; safety and air navigation rules are the work of governments and of ICAO, the United Nations aviation agency.
The association was founded in Havana, Cuba, on 19 April 1945 by 57 airlines from 31 nations, mostly in Europe and North America, succeeding the International Air Traffic Association set up in The Hague in 1919. It was formally established by an Act of the Canadian Parliament later in 1945. IATA's head office is in Montreal and its executive office in Geneva.
According to IATA's 2026 fact sheet, it has over 370 members in more than 130 countries and territories, and members carried about 85% of total scheduled traffic in 2025, measured in revenue tonne-kilometres.
For travel sellers, IATA matters through its standards and services. It assigns airline designators and location codes, defines documents such as the e-ticket and EMD, develops NDC and ONE Order, accredits travel agencies, and runs the Billing and Settlement Plan that settles agency sales with airlines in most markets outside the United States.
How IATA works
IATA works through member governance, industry conferences and commercial services that airlines and agencies use every day.
- Members governMember airlines elect a board and meet at an annual general meeting, where industry positions and resolutions are agreed.
- Conferences set standardsBodies such as the Passenger Services Conference and Passenger Agency Conference adopt resolutions on documents, codes and agency rules.
- Codes are assignedIATA allocates two-character airline designators, three-letter location codes and three-digit accounting codes under its resolutions.
- Agencies are accreditedTravel agencies that meet IATA's financial and operational criteria can be accredited to issue tickets on participating airlines.
- Sales are settledAccredited agencies report sales through BSP, which bills agencies and pays airlines on a set calendar.
IATA in practice
IATA standards that a travel agency touches in a single booking:
- The airline code (for example QR for Qatar Airways) and airport codes such as DOH and DXB, both IATA-assigned.
- The 13-digit e-ticket number, whose first three digits are the airline's IATA accounting code.
- An EMD for a paid seat, defined by IATA resolutions 725f to 725h.
- Settlement of the sale through BSP and, if something goes wrong, an ADM handled under Resolution 850m.
IATA's push for 100% electronic ticketing, completed on 1 June 2008, is an example of the association changing how the whole industry sells.
Who uses it
Advantages and limitations
Advantages
- Shared standards let airlines, agencies and technology providers work together worldwide.
- BSP gives agencies one settlement process for many airlines in a market.
- Accreditation gives airlines a common baseline for trusting agency sales.
- Industry-wide programmes, such as e-ticketing and NDC, move faster when coordinated.
Limitations
- Not every airline is a member, and many low-cost carriers sell outside IATA settlement.
- Accreditation has financial requirements that can be demanding for small agencies.
- Resolutions are written by and for airlines, so agencies have limited influence over them.
- Standards adoption varies, so NDC and ONE Order capabilities differ widely by airline.
Frequently asked questions about IATA
Is IATA a government organisation?
No. IATA is a trade association owned by its member airlines. It sets commercial and industry standards and offers services such as BSP. Government-level aviation rules on safety and navigation are agreed through ICAO, a United Nations agency, and enforced by national regulators.
How many airlines are members of IATA?
IATA's fact sheet, dated 2026, reports over 370 member airlines in more than 130 countries and territories. It says members carried about 85% of total scheduled traffic in 2025, measured in revenue tonne-kilometres. Membership changes as airlines join, merge or leave, so check IATA's member list for a current count.
Do travel agencies need IATA accreditation?
Not always, but it is the usual route for issuing tickets directly. Accreditation lets an agency issue tickets on participating airlines and settle through BSP. Agencies without it often book through a consolidator or host agency that holds accreditation, or use airline direct channels and low-cost carrier websites.
Where is IATA's headquarters?
IATA's head office is in Montreal, Canada, where it was formally established by an Act of the Canadian Parliament in 1945. Its executive office is in Geneva, Switzerland. The association also runs regional and country offices that support local airlines, agencies and BSP operations.
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