United Airlines pilot Steve Lindland receives a COVID-19 vaccine at O’Hare International Airport.

Scott Olson/Getty Images

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Scott Olson/Getty Images

United Airlines pilot Steve Lindland receives a COVID-19 vaccine at O’Hare International Airport.

Scott Olson/Getty Images

United Airlines is touting the success of its COVID-19 vaccine mandate, saying that more than 99% of its U.S.-based employees have met the company’s requirement to get vaccinated, or have applied for a religious or medical exemption.

But the fewer than 600 United employees who did not get vaccinated by the airline’s deadline of Sept. 27 now face termination.

“This is a historic achievement for our airline and our employees as well as for the customers and communities we serve,” United CEO Scott Kirby and president Brett Hart said in a memo to employees. “Our rationale for requiring the vaccine for all United’s U.S.-based employees was simple — to keep our people safe — and the truth is this: everyone is safer when everyone is vaccinated, and vaccine requirements work.”

United announced August 6 that the Chicago-based airline was requiring all 67,000 of its U.S.-based employees to be vaccinated. At the time, the airline said about 90% of pilots and 80% of flight attendants had already been vaccinated.

Seven weeks later, United says about 2,000 workers, less than 3% of the U.S.-based workforce, have applied for a religious or medical accommodation. Those workers had faced being put on an unpaid leave of absence Oct. 2, but the airline has pushed back that date while a federal lawsuit challenging that policy works its way through the courts.

United says 593 employees have not been vaccinated nor have they applied for an exemption.

“For the less than 1% of people who decided to not get vaccinated, we’ll unfortunately begin the process of separation from the airline per our policy,” Kirby and Hart told employees in the memo.

Their letter thanks “the tens of thousands of employees who got their shot,” adding “we know for some, that decision was a reluctant one. But there’s no doubt in our minds that some of you will have avoided a future hospital stay – or even death – because you got vaccinated.”