US Airways Dividend Miles members on eligible US Airways Shuttle flights between Boston, New York and Washington, D.C. can earn 5,000 bonus miles on every third flight when you buy your ticket and complete your travel by May 31, 2013, up to 50,000 bonus miles. Members will earn the bonus on all itineraries that include a US Airways Shuttle segment, which is any nonstop flight between Washington, D.C. (DCA), New York City (LGA) and Boston. On itineraries that include connections to other cities, the bonus only applies to US Airways Shuttle segments. Registration is required at http://insideflyerus.wpengine.com/link/?8565