“While it is not yet certain which Executive Order will apply to America’s airlines, it is apparent that we will be subject to a vaccine mandate in either instance,” wrote Allied Pilots Association President Eric Ferguson.

“Unions representing pilots at Southwest Airlines and American Airlines, both based in Texas, are asking for exemptions to President Joe Biden’s pending vaccine mandate, with one of those unions warning that holiday travel could be disrupted if they have to comply.

In a Sept. 24 letter distributed to 15 officials across the FAA, Congress, DOT and others, the Allied Pilots Association, which represents 14,000 pilots at American, suggested mandatory vaccinations could cause disruptions across the aviation industry as airlines will be forced to “offer unpaid leaves of absence or, worse, implement mass terminations of unvaccinated pilots.”

https://www.politico.com/news/2021/09/27/texas-airline-pilots-vaccine-mandate-holiday-514431