IATA-ICAO
It didnt work realy well, because when i use from they side the IATA as LAX than it work well, but when i use API from https://rapidapi.com/vacationist/api/iata-and-icao-codes/
The code simpli didnt work.
As example
iata_code:"BA"
name:"British Airways"
icao_code:“BAW”

from the previous link will not work with this API.