Delta Air Lines, Inc. reported unaudited operating results for the fourth quarter and full year ended December 31, 2021. For the quarter, the company reported revenue passenger miles of 40,402 million. Available seat miles was 51,744 million. Passenger mile yield was 17.92 cents. Passenger revenue per available seat mile was 13.99 cents. Total revenue per available seat mile was 18.30 cents. Passenger load factor was 78%.

For the full year, the company reported revenue passenger miles of 134,692 million. Available seat miles was 194,474 million. Passenger mile yield was 16.72 cents. Passenger revenue per available seat mile was 11.58 cents. Total revenue per available seat mile was 15.37 cents. Passenger load factor was 69%.