What is the ICAO flight number?

ICAO Flight Number

The International Civil Aviation Organization (ICAO) flight number is a unique identifier assigned to each flight operated by an airline. It consists of a three-letter airline designator, a flight number, and optionally, a suffix.

The airline designator is a unique three-letter code assigned to each airline by the ICAO. It is used to identify the airline operating the flight. For example, the airline designator for American Airlines is "AAL".

The flight number is a unique number assigned to each flight by the airline. It is used to identify the specific flight within the airline's schedule. For example, American Airlines flight 123 from New York to Los Angeles would be designated as "AAL123".

The suffix is an optional addition to the flight number that is used to identify a specific flight within a group of flights that are operated on the same route and at the same time. For example, American Airlines might use the suffix "A" to identify the first flight of the day from New York to Los Angeles, "B" to identify the second flight, and so on.

ICAO flight numbers are used for a variety of purposes, including:

• Identifying flights in flight plans and air traffic control systems
• Tracking flights in real-time
• Providing information to passengers about their flights
• Marketing and advertising flights

ICAO flight numbers are an essential part of the global aviation system. They help to ensure that flights are operated safely and efficiently, and that passengers can easily find information about their flights.