U.S. airlines report second-quarter losses of $11 billion - CBS News
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US airlines 2020: Spirit loss at 428.7 million, but Delta worst performer
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American Airlines Reports Fourth-Quarter and Full-Year 2020 Financial Results - American Airlines Newsroom
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United Airlines says it lost $7.1bn in 2020 on Covid-19 hit
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American Airlines lost $545 million in the third quarter on higher labor costs while rivals prosper
American Airlines Reports Second-Quarter 2021 Financial Results - American Airlines Newsroom
American Airlines reports billions in losses for second quarter as COVID-19 spread