Update: This appears to be targeted, so don’t be surprised if you install and don’t find the 15% offer.American Airlines is encouraging AAdvantage members to download their desktop deal application “Dealfinder” by offering a 15% off coupon on a future flight.I installed the application (for blog writing purposes) and I found the process to be pretty quick and easy. I had entered JFK as my home airport and I noticed my 15% off coupon was for domestic round-trips starting and ending in one of the NYC airports. I assume that requirement will change if you enter a different home airport (so keep that in mind when registering).Email"As a DealFinder subscriber, please enjoy this exclusive 15% off* discount on your next flight! Book your flight by August 12, 2011, for travel September 6 through November 14, 2011 and save!Your Exclusive DealFinder Promotion Code: DF2NYC1W (someone can use mine, because I refuse to give any business to American Airlines - read more here)To qualify, book your reservations on AA.com by 11:59 p.m. (CT) Friday, August 12, 2011, and travel September 6, 2011 through November 14, 2011. The 15% discount is valid on round-trip* travel, for up to four passengers between Newark, John F. Kennedy, and La Guardia airports and the US***. A Saturday night minimum stay and $200 minimum fare is required. Just enter the DealFinder promotion code and save! For additional terms and restrictions visit aa.com/promotioncode.“Sign up for our daily newsletterEmail addressSign upI would like to subscribe to The Points Guy newsletters and special email promotions. The Points Guy will not share or sell your email. See privacy policy.As I’ve moaned about before, fares have been rising lately, so every discount counts!Hat tip TPG reader Adam!Screenshot