FILE PHOTO: An Aegean Airlines Airbus A321 prepares to take off from the Eleftherios Venizelos International Airport, in Athens, Greece, May 11, 2020. REUTERS/Alkis Konstantinidis
FILE PHOTO: An Aegean Airlines Airbus A321 prepares to take off from the Eleftherios Venizelos International Airport, in Athens, Greece, May 11, 2020. REUTERS/Alkis Konstantinidis