The holiday travel rebound U.S. airlines were anticipating is starting to wobble.

After nearly two years and a pair of deadly crashes, the U.S. Federal Aviation Administration has cleared Boeing’s 737 Max for flight.

U.S. regulators plan on Nov. 18 to unveil the long-awaited final requirements for allowing Boeing Co.’s grounded 737 Max to return to service after 20 months, according to a person briefed on the plans.

Boeing Co.’s 737 Max could be approved to resume commercial service as soon as the week of Nov. 16, with U.S. aviation regulators finalizing their review of fixes to the grounded jetliner.

Southwest Airlines Co. issued notices for what could be the first involuntary furloughs in its 49-year history, after a union declined to discuss concessions aimed at cutting payroll costs.

The virus-ravaged airline industry reached a milestone Oct. 18, carrying more than 1 million passengers for the first time in seven months.

American Airlines Group Inc. plans to make Boeing Co. 737 Max passenger flights at the end of this year for the first time since the aircraft’s grounding in March 2019.

American Airlines Group Inc. and United Airlines Holdings Inc. will start laying off thousands of employees as scheduled, spurning Treasury Secretary Steven Mnuchin’s appeal for a delay as he negotiates with Congress over an economic relief plan that includes payroll support for U.S. carriers.

U.S. airlines are preparing to lay off tens of thousands of workers starting Oct. 1 unless they get additional federal aid, sparking a plea from Treasury Secretary Steven Mnuchin to hold off on the cuts amid signs of progress in talks with Congress.

Lawmakers who criticized regulators over the way they approved the Boeing 737 Max will propose changing the way that the Federal Aviation Administration certifies new plane designs and uses private-sector employees to perform safety analysis.