An airport employee walks through Reagan National Airport in Arlington, Va., earlier this year. On Thursday, the Centers for Disease Control and Prevention warned that Americans should refrain from traveling for the upcoming holiday.

TOPSHOT – An airport employee walks through Ronald Reagan Washington National Airport in Arlington, Virginia, on May 12, 2020. – The airline industry has been hit hard by the COVID-19 pandemic, with the number of people flying having decreased by more than 90 percent since the beginning of March. (Photo by ANDREW CABALLERO-REYNOLDS / AFP) (Photo by ANDREW CABALLERO-REYNOLDS/AFP via Getty Images)