US Airways Dividend Miles members have a double incentive to hop aboard the US Airways Shuttle. Through March 31, members can earn double miles and, in addition to this bonus, for every five roundtrip flights taken members earn 10,000 bonus miles. A total of 20,000 miles for five roundtrip Shuttle flights is nothing to turn your nose up at. You must register for this promotion and you can do so at http://www.usairways.com/dm/7653.htm.