The major airlines have held off on layoffs and mass furloughs under the terms of a $25 billion payroll support program Congress passed in March.
The deal was aimed at helping the airlines cope with shutdowns, quarantines, and a crash in bookings, but at the time it was passed, lawmakers believed demand for air travel would recover in a few months.
American Airlines Chief Executive Doug Parker said in a letter to employees that he stood ready to reverse the furloughs if lawmakers reach a deal, according to Reuters.