I had purchased a ticket on Aires in August but when it came time to fly, I got an email from LAN say that they were converting the flight number to LAN. I gave my AA # and it was entered in to system. When I went to check in on 12/15 it recognized my status and I was directed to Elite check in.

On my return from Bogota, on check in I was given Admiral's club admission tickets. I asked about how they managed to integrate Aires so quickly and the agent said that unlike LAN Argentina which was kept as an independant airline, Aires is being TIGHTLY integrated in the LAN's operational structure.