Hints and Airports
Some IATA codes are the initials of the name of the airport they represent (e.g. JFK for John Fitzgerald Kennedy, New York) or abbreviations of the city where they are located (e.g. DUB for Dublin Airport). However, in many cases, there is no clear association between the airport and its code (e.g. YYZ for Toronto Pearson International Airport).
Also, asking the players to guess any three-letter code could lead to frustration. They could spend all their six attempts before getting any clue.
Instead, a hint about the airport's location is displayed at the start of every new game to make the game easier to play. Also, the list of airports is limited to the one-hundred busiest airports in Europe and North America.