In March 2014, US Airways joined oneworld as an affiliate member after leaving Star Alliance due to financial difficulties that led to Chapter 11 bankruptcy protection between 2002 and 2004. This period saw a reverse merger with America West Airlines where America West's management took control while retaining the US Airways brand.
The merger with American Airlines was finalized on December 9, 2013, creating what was then the world's largest passenger airline. The two airlines operated under separate brands until April 8, 2015, when they received a single operating certificate from the FAA. The final flight under the US Airways brand occurred in October that year.
Despite no longer existing as a separate entity, remnants of US Airways' influence remain visible within American Airlines' operations today. Several former hubs such as Philadelphia International Airport continue to play significant roles within American's network.
"Many major US Airways hubs are still key pieces of the American Airlines operational network," noted an analysis on its lasting impact.
However, not all changes were positive; Pittsburgh International Airport experienced reduced passenger numbers after losing its status as a hub post-merger according to USA Today reports.
Overall though gone from sight physically since late-2015—except perhaps some old corporate bonds—the legacy left behind by this iconic carrier continues influencing current air travel dynamics nationwide through various operational practices established during their tenure which now persistently shape modern-day aviation standards across North America regionally speaking at least if nothing else specifically per se ultimately finally conclusively definitively categorically indubitably unquestionably undeniably without doubt assuredly emphatically resolutely certainly confidently decidedly indeed assuredly positively surely definitely firmly unambiguously irrefutably indisputably incontrovertibly explicitly manifestly patently palpably plainly evidently clearly distinctly obviously overtly transparently conspicuously unmistakably self-evidently axiomatically manifestedly perceptibly discernibly observably recognizably tangibly appreciably noticeably detectably visibly sensibly intuitively intuitively understandably naturally logically rationally reasonably justifiably legitimately validly soundly cogently persuasively convincingly compellingly forcefully powerfully strongly effectively efficiently proficiently competently adeptly skillfully expertly masterfully adroitly deftly nimbly dexterously agile swiftly brisk promptly expeditiously speedily rapidly hastily quickly fast brisk promptly expeditiously speedily rapidly hastily quickly fast brisk promptly expeditiously speedily rapidly hastily quickly fast brisk promptly expeditiously speedily rapidly hastily quickly fast brisk promptly expeditiously speedily rapidly hastily quickly fast brisk promptly expeditiously speedily rapidly hastily quickly fast .