As part of the American AAdvantage 30th anniversary, you can get MileSAAver award redemptions for 30% fewer miles for travel within the Continental U.S. and Canada. You do not need to pre-register for this deal. You just need to book the trip by June 10, 2011 for travel between September 7, 2011 and November 8, 2011. Here is the link to the deal.
If you are not already an American AAdvantage member, you can join the program and enter promo code ADV30 to get 500 bonus miles.