United Airlines says it lost $7.1bn in 2020 on Covid-19 hit
Airline Industry Statistics [2023]: 28 Facts To Know Before You Fly - Zippia
American Airlines Reports Second-Quarter 2021 Financial Results - American Airlines Newsroom
Coronavirus: US airlines set to report their first losses in years as travel demand falls
Fasten Your Seat Belts. Airlines Are About to Disclose Their Losses. - Barrons
US airlines 2020: Spirit loss at 428.7 million, but Delta worst performer
Boeing 737 Max Is Cleared by F.A.A. to Resume Flights - The New York Times
U.S. Airlines Report Second Quarter 2020 Losses
American Airlines shares surge on carrier's better second-quarter forecast
Coronavirus pushes United Airlines (UAL) to a $1.6 billion loss in second quarter
U.S. airlines report second-quarter losses of $11 billion - CBS News