United Airlines Holdings, Inc. reported impairment of assets for the third quarter ended September 30, 2021. For the quarter, the company reported impairment of assets of $46 million against $38 million a year ago. During the three months ended September 30, 2021, the company recorded impairment charges for nine Airbus A319 aircraft and 13 Boeing 737-700 airframes as a result of current market conditions for used aircraft.