American Airlines is planning to hire 18,000 workers in 2022, on top of thousands of new employees this year to cater to a rebound in travel, CEO Doug Parker plans to tell lawmakers during a hearing about flight disruptions in recent months.

The CEOs of American, United Airlines and Southwest Airlines, and Delta Air Lines’ chief of operations, will face questions Wednesday from the Senate Committee on Commerce, Science, and Transportation about mass flight cancellations and staffing struggles despite roughly $54 billion in federal payroll aid doled out to the airline industry to soften the Covid pandemic’s impact.

American and Southwest canceled hundreds of flights during brief periods this fall, as they struggled with staffing shortfalls and bad weather. Both carriers have turned to incentives like extra pay or bonuses to avoid repeats during Thanksgiving, which went smoothly, and Christmas and New Year’s holidays.

Airlines during the pandemic urged thousands of workers to voluntarily take buyouts or leaves of absence to help cut their labor bills since the aid package prohibited them from laying off staff.

Now they are scrambling to add workers as travel demand returns, competing in a tight labor market that has impacted retailers, restaurants, hotels and other industries.

American, which has about 130,000 employees including its regional airline subsidiaries, has hired more than 16,000 employees this year, such as pilots, flight attendants, mechanics and reservations agents, Parker said in written testimony ahead of the hearing.

“We believe this positive momentum will continue into next year, as we’ve set a target of hiring an additional 18,000 team members in 2022,” Parker said in his testimony. “Each time we add to our ranks, it’s like a dividend payment on the investment made in our team through the [payroll support program]; instead of building back from collapse, we’re growing to provide more promising careers in good-paying jobs to hard-working individuals who are the lifeblood of our nation’s economy.”

American’s hiring plans account for attrition.

Southwest says it plans to hire more than 8,000 employees in 2022 after adding about 5,000 this year.