How will the recent American Airlines/US Airways impact your travel?  At the present time, they will continue to operate as two separate airlines with two separate mileage or loyalty programs.  US Airways will leave Star Alliance on March 30, 2014, however, and join American’s alliance at OneWorld. If you are a US Airways frequent flyer, this may impact which airlines you fly as the partner airlines will change.  For more details, you may want to visit their website at http://www.aa.com/i18n/findYourWay/faqs.jsp#8.