Term

IATA

Daniel MarkFounder & Editor, Aviatopia
Published Mar 1, 2026Updated Mar 1, 20261 min read

International Air Transport Association — the global trade association for airlines, responsible for 3-letter airport and airline codes, ticketing standards, and industry coordination.

aviation-glossary

Quick Facts

Type
Industry Organization
Also Known As
IATA
Used By
Airlines, Airports

Definition#

IATA stands for International Air Transport Association. Founded in 1945, it is the trade association representing the world's airlines, facilitating cooperation on commercial standards, ticketing, pricing, and safety.

Why It Matters Operationally#

IATA assigns the 3-letter airport codes (e.g., JFK, LHR) used in passenger-facing systems, creates the 2-letter airline designator codes, and maintains the interline settlement system that allows passengers to book multi-carrier itineraries on a single ticket.

IATA vs ICAO Codes#

FeatureIATAICAO
Length3 letters4 letters
ExampleJFKKJFK
UsagePassenger-facingOperational / ATC

See Also

Used in