WhatPlane QuizIATA codes
The familiar three-letter codes used on tickets, baggage tags and airport displays. Examples include LHR for London Heathrow and JFK for New York John F. Kennedy.
IATA and ICAO code practice
Airport Codes Quiz
Can you match the world's best-known three-letter airport codes to their cities—and recognise four-letter ICAO codes used in flight operations? Start with ten major international airports.
Start the airport codes quiz →No account needed for your first quiz
LHRJFKDXBHND
How to approach it
Three useful clues
ICAO codes
Four-letter operational identifiers used in flight planning and air traffic systems. London Heathrow is EGLL; Tokyo Haneda is RJTT.
How to learn them
Group codes by region, connect unusual codes with the airport's history, then use active recall instead of rereading a list.
Quick answers
About this activity
What is the difference between IATA and ICAO airport codes?
IATA codes usually have three letters and are passenger-facing. ICAO codes have four letters and are primarily used in operations, flight plans and air traffic systems.
How many questions are in the quiz?
The current airport-code round contains ten major international IATA and ICAO prompts.
Ready?
Turn the clues into recall.
Practise with real aircraft references and immediate explanations.