Travelers watch a JetBlue aircraft taxi away from a gate at Ronald Reagan Washington National Airport on May 25. Patrick Semansky/AP hide caption toggle caption Patrick Semansky/AP Coronavirus Updates American, Alaska Airlines and JetBlue will require their employees to be vaccinated October 2, 2021 The three airlines are joining United in mandating that workers be vaccinated against COVID-19, as the Biden administration steps up pressure on major U.S. carriers to require the shots.