IO Airline Code, Indonesian Airlines
IO is the IATA airline code for Indonesian Airlines based in Indonesia. The airline also has the 3-letter ICAO code IAA, and its radio callsign is "Indo Lines". You will see IO as the two-character prefix on its flight numbers, for example IO123.
What is the Indonesian Airlines airline code?
The IATA airline code for Indonesian Airlines is IO. This two-character code prefixes the airline's flight numbers and appears on tickets and schedules. The three-letter ICAO code IAA is used in flight plans and air traffic control.
IATA airline codes are two characters and can reuse letters over time, so a retired airline's code may later be assigned to another carrier. ICAO codes are three letters and are more stable, which is why flight plans use them.
Frequently asked questions
What is the airline code for Indonesian Airlines?
The IATA airline code for Indonesian Airlines is IO. Its ICAO code is IAA.
What is the abbreviation for Indonesian Airlines?
The two-character IATA abbreviation for Indonesian Airlines is IO, and its three-letter ICAO code is IAA.
What airline is IO?
IO is the IATA code for Indonesian Airlines, based in Indonesia.
What is the ICAO code for Indonesian Airlines?
Indonesian Airlines uses the ICAO airline code IAA and the radio callsign "Indo Lines".
What country is Indonesian Airlines based in?
Indonesian Airlines (IO) is based in Indonesia.
What is the radio callsign for Indonesian Airlines?
Air traffic control refers to Indonesian Airlines by the radio callsign "Indo Lines".