Mayorkas Must Fly Coach Until We Secure the Border Act This bill prohibits any officer or official of the Office of the Secretary of the Department of Homeland Security (DHS), including the Secretary of DHS, from using any federal executive aircraft until certain conditions relating to the border have been met. Specifically, the prohibition shall apply until the number of encounters and apprehensions of non-U.S. nationals ( aliens under federal law) who have unlawfully crossed the border have been reduced to FY2020 numbers; DHS reports to Congress a plan to place 90% of deployed U.S. Border Patrol agents in duties in the field; and DHS reports to Congress a plan to offer resources, including financial support, to local communities and governments.