While smaller airlines have once again grabbed the laurels, it is the dramatic improvement of many of the largest carriers that is the standout feature of Aviation Week's Top-Performing Airlines (TPA) study this year. Panama's Copa Airlines achieved the highest score overall and was first among midsize carriers, edging out Al-legiant Air, which was second overall and best of the small-airline category. They continue the long-established TPA trend of well-run niche carriers being heavily represented at the top of the overall rankings.
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