Delta Air Lines (DAL) reported Q4 December 2021 earnings of $0.22 per share on revenue of $9.5 billion. Revenue grew 138.4% on a year-over-year basis. The company said it expects first quarter revenue of $7.54 billion to $7.96 billion. Bastian said. "Omicron is expected to temporarily delay the demand recovery 60 days, but as we look past the peak, we are confident in a strong spring and summer travel season with significant pent-up demand for consumer and business travel."