American Airlines will merge US Airways Dividend Miles into its AAdvantage frequent-flyer program in the second quarter of 2015, the carrier announced Tuesday. AAdvantage will maintain its three-tier elite membership levels, compared with the four-tier Dividend Miles program, and American will move Dividend Miles members' mileage balances and elite-qualifying activity into their AAdvantage accounts when the programs officially are combined. Status will remain based on mileage traveled rather than the amount spent on air travel.
—from Business Travel News