What is the id, name and IATA code of the airport that had most number of flights?
return airports ;return flights of #1 ;return number of  #2 for each #1 ;return #1 where #3 is  highest ;return id of #4 ;return name of #4 ;return IATA code of #4 ;return #5 ,  #6 ,   #7
['select', 'project', 'group', 'superlative', 'project', 'project', 'project', 'union']