Delta Air Lines anuncia los resultados financieros del cuarto trimestre y de todo 2021 (en inglés)

-December quarter 2021 GAAP pre-tax loss of $395 million, pre-tax margin of (4.2) percent and loss per share of $0.64 on total operating revenue of $9.5 billion -December quarter 2021 adjusted pre-tax income of $170 million, adjusted pre-tax margin of 2.0 percent and adjusted earnings per...