25/01/2022 (Agence Europe) – Air traffic recovered between 2020 and 2021, with a 37% increase in passenger numbers. However, it remains well below (-59%) its 2019 level, the pre-pandemic reference period, Airport Council International Europe (ACI Europe) said on Tuesday 25 January. This decrease between 2019 and 2021 represents some 1.4 billion lost passengers. TheACI Europe report specifically highlights that the Delta variant had caused a 77.7% drop in passenger numbers in the first...