Thanks for contacting AAdvantage� Customer Service. We're sorry you've been kept waiting.

We have received your request for AAdvantage miles for your travel that took place on LAN. I am sorry to disappoint you; however, this trip is not eligible for AAdvantage mileage credit.

Your flight was booked and ticketed on LAN through its codeshare relationship with Aires. Through these relationships, customers have the convenience of booking their travel on one airline to destinations that it does not serve, by traveling on flights operated by the codeshare carrier. Carriers that participate in the AAdvantage program do not necessarily allow their codeshare flights to earn AAdvantage miles; indeed, they designate which of their codeshare flights, operated by which specific carriers, are eligible for AAdvantage mileage accrual and which ones aren't. This information is available from the booking carrier.

In this specific situation, LAN codeshare flights operated by Aires are not eligible for AAdvantage mileage credit. We sincerely regret the misunderstanding. When you make future reservations involving AAdvantage participating airlines, please be sure to check if the travel is eligible for AAdvantage miles. In addition to the general rules for earning AAdvantage miles when you travel on a participating airline, this is especially imperative when you book a codeshare flight, since eligibility could also depend on which operating carrier is involved.

I'm sorry my response couldn't be more positive. We hope to continue the beneficial relationship we have enjoyed thus far. Thank you for your understanding.