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. AA CEO Doug Parker this summer said switching to a revenue-based program, as Delta and United have done, was "
not even on the plate" as the carrier worked to combine the two programs.