If you have a Citi AAdvantage card, you can book round-trip American Airlines award flights with reduced mileage requirements from now through March 31, 2012. Every quarter, Citi releases a list of select destinations within the 48 contiguous United States and Canada for reduced mileage awards. They break down the list according to the specific Citi AAdvantage card type you have, but judging from what I have seen, the destinations are identical for every card. The only difference is that some card types offer a discount of 7,500 miles, while others only offer 5,000 miles. You must call the American Airlines AAdvantage award reservations desk at 1-800-882-8880 in order to book your reduced mileage tickets. Unfortunately, the $25 phone reservation fee will apply. Your booking and travel must be completed by March 31, 2012.
The list of destinations is somewhat limited, as it features mostly smaller, obscure markets that typically aren't very popular with travelers. However, there are a couple of interesting destinations that might be worthwhile. For example, I see Vancouver and Montreal listed for only 17,500/42,500 miles round-trip if you have the Citi AAdvantage Platinum Select Visa or MasterCard, or the Citi AAdvantage Select American Express. I also see Atlanta, New Orleans, Austin, and Richmond for 17,500/42,500 miles round-trip as well. Take a look at the full list of destinations; there may be some good deals to be had if you are planning on visiting those destinations anyway.