The Alitalia headquarters are seen at Fiumicino airport in Rome, Italy, February 5, 2021. REUTERS/Remo Casilli

A man walks near an Alitalia logo sign at Fiumicino airport in Rome, Italy, February 5, 2021. REUTERS/Remo Casilli

The Alitalia logo sign is seen at Fiumicino airport in Rome, Italy, February 5. 2021. REUTERS/Remo Casilli

The Alitalia logo sign is seen at Fiumicino airport in Rome, Italy, February 5. 2021. REUTERS/Remo Casilli

An Alitalia Airbus A319 comes in to land at Rome Fiumicino Airport, as the spread of the coronavirus disease (COVID-19) continues, Rome, Italy, April 24, 2020. REUTERS/Alberto Lingria

An Alitalia Airbus A319 comes in to land at Rome Fiumicino Airport, as the spread of the coronavirus disease (COVID-19) continues, Rome, Italy, April 24, 2020. REUTERS/Alberto Lingria

An Airbus A330 of Alitalia airlines lands at the Rome Fiumicino Airport following the outbreak of coronavirus disease (COVID-19) in Fregene, Italy, April 18, 2020. REUTERS/Alberto Lingria

An Alitalia airline employee wearing a face mask puts his luggage in a bus as he leaves an hotel following the coronavirus outbreak, in Buenos Aires, Argentina March 16, 2020. REUTERS/Agustin Marcarian

An Alitalia airline employee wearing a face mask waves as he leaves an hotel following the coronavirus outbreak, in Buenos Aires, Argentina March 16, 2020. REUTERS/Agustin Marcarian

A woman wearing a face mask waits with other passengers at the check-in area for an Alitalia, after further cases of coronavirus were confirmed in New York, at JFK International Airport in New York, U.S., March 13, 2020. REUTERS/Shannon Stapleton

A woman wearing a face mask waits with other passangers at the check in area for an Alitalia, after further cases of coronavirus were confirmed in New York, at JFK International Airport in New York, U.S., March 13, 2020. REUTERS/Shannon Stapleton

An Alitalia employee, wearing a protective face mask, works during an arrival flight from Italy after the next case of coronavirus in Sao Paulo was confirmed, at Guarulhos International Airport in Guarulhos, Sao Paulo state, Brazil March 5, 2020. REUTERS/Rahel Patrasso

Alitalia plane is seen on the tarmac after landing at Ben Gurion International airport in Lod, near Tel Aviv, Israel February 27, 2020. REUTERS/Amir Cohen

A view of the Alitalia Airbus A330-200 plane ahead of Pope Francis' departure from Fiumicino Airport to begin his visit to the African nations of Mozambique, Madagascar and Mauritius, in Rome, Italy September 4, 2019. REUTERS/Remo Casilli

The Alitalia Airbus A321-100 plane carrying Pope Francis is seen at Fiumicino airport in Rome, Italy before flying to Sofia, Bulgaria. REUTERS/Remo Casilli

An Alitalia plane carrying Pope Francis departs for his visit to Morocco, at Leonardo da Vinci-Fiumicino Airport in Rome, Italy, March 30, 2019. REUTERS/Alberto Lingria

Vatican and Italian flags flutter on the Alitalia plane carrying Pope Francis before departure for his visit to Morocco, at Leonardo da Vinci-Fiumicino Airport in Rome, Italy, March 30, 2019. REUTERS/Alberto Lingria

An Alitalia plane carrying Pope Francis is seen on the tarmac before departure for his visit to Morocco, at Leonardo da Vinci-Fiumicino Airport in Rome, Italy, March 30, 2019. REUTERS/Alberto Lingria

An Alitalia plane carrying Pope Francis is seen before departure for his visit to Morocco, at Leonardo da Vinci-Fiumicino Airport in Rome, Italy, March 30, 2019. REUTERS/Alberto Lingria

Alitalia airplanes are pictured at Leonardo da Vinci-Fiumicino Airport in Rome, Italy, March 30, 2019. REUTERS/Alberto Lingria

An Alitalia Airbus A330-200 airplane is pictured at Leonardo da Vinci-Fiumicino Airport in Rome, Italy, March 30, 2019. REUTERS/Alberto Lingria

An Alitalia plane carrying Pope Francis is seen on the tarmac before departing for United Arabs Emirates, at Leonardo da Vinci-Fiumicino Airport in Rome, Italy, February 3, 2019. REUTERS/Remo Casilli

An Alitalia airplane approaches to land at Fiumicino airport in Rome, Italy October 24, 2018. REUTERS/Max Rossi

An Alitalia airplane approaches to land at Fiumicino airport in Rome, Italy October 24, 2018. REUTERS/Max Rossi

An Alitalia Airbus A320-200 airplane approaches to land at Fiumicino airport in Rome, Italy October 24, 2018. REUTERS/Max Rossi

An Alitalia Airbus A320-200 airplane approaches to land at Fiumicino airport in Rome, Italy October 24, 2018. REUTERS/Max Rossi

An Alitalia Airbus A320-200 airplane approaches to land at Fiumicino airport in Rome, Italy October 24, 2018. REUTERS/Max Rossi

An Alitalia Airbus A320-200 airplane approaches to land at Fiumicino airport in Rome, Italy October 24, 2018. REUTERS/Max Rossi

An Alitalia Airbus A320-200 plane carrying Pope Francis lands at Dublin International Airport, Ireland August 25, 2018. REUTERS/Clodagh Kilcoyne

Passengers board an Alitalia airplane at the Cagliari airport, Italy, July 9, 2018. Picture taken July 9, 2018. REUTERS/Stefano Rellandini

Passengers board an Alitalia airplane at the Cagliari airport, Italy, July 9, 2018. Picture taken July 9, 2018. REUTERS/Stefano Rellandini

An Alitalia Airbus A321-100 airplane takes off from the Leonardo da Vinci-Fiumicino Airport in Rome, Italy, June 21, 2018. REUTERS/Stefano Rellandini

An Alitalia airplane is seen before take off from the Leonardo da Vinci-Fiumicino Airport in Rome, Italy, June 21, 2018. REUTERS/Stefano Rellandini

An Alitalia Airbus A321-100 airplane takes off from the Leonardo da Vinci-Fiumicino Airport in Rome, Italy, June 21, 2018. REUTERS/Stefano Rellandini

An Alitalia airplane is seen before take off from the Leonardo da Vinci-Fiumicino Airport in Rome, Italy, June 21, 2018. REUTERS/Stefano Rellandini

An Alitalia airplane is seen before take off from the Leonardo da Vinci-Fiumicino Airport in Rome, Italy, June 21, 2018. REUTERS/Stefano Rellandini

An EasyJet Airbus A319-100 airplane and an Alitalia Airbus A321-100 airplane are seen on the tarmac at the Leonardo da Vinci-Fiumicino Airport in Rome, Italy, June 21, 2018. REUTERS/Stefano Rellandini

An Alitalia airplane takes off from the Leonardo da Vinci-Fiumicino Airport in Rome, Italy, June 21, 2018. REUTERS/Stefano Rellandini

An Alitalia Airbus A321-100 plane carrying Pope Francis for one-day visit to Geneva takes off at the Leonardo da Vinci-Fiumicino Airport in Rome, Italy, June 21, 2018. REUTERS/Stefano Rellandini

Italian designer Alberta Ferretti smiles during the official presentation of Alitalia's new Alberta Ferretti-designed uniforms in Milan, Italy, June 15, 2018. REUTERS/Stefano Rellandini

Alitalia airline crew members pose with new uniforms during the official presentation of Alitalia's new Alberta Ferretti-designed uniforms in Milan, Italy, June 15, 2018. REUTERS/Stefano Rellandini

An Alitalia airline crew member poses with the new uniform during the official presentation of Alitalia's new Alberta Ferretti-designed uniforms in Milan, Italy, June 15, 2018. REUTERS/Stefano Rellandini

Italian designer Alberta Ferretti shows the details of an overcoat during the official presentation of Alitalia's new Alberta Ferretti-designed uniforms in Milan, Italy, June 15, 2018. REUTERS/Stefano Rellandini

Alitalia airline crew members pose with new uniforms during the official presentation of Alitalia's new Alberta Ferretti-designed uniforms in Milan, Italy, June 15, 2018. REUTERS/Stefano Rellandini

An Alitalia airline crew member displays her new uniform during the official presentation of Alitalia's new Alberta Ferretti-designed uniforms in Milan, Italy, June 15, 2018. REUTERS/Stefano Rellandini

Italian designer Alberta Ferretti shows the details of a bag during the official presentation of Alitalia's new Alberta Ferretti-designed uniforms in Milan, Italy, June 15, 2018. REUTERS/Stefano Rellandini

Italian designer Alberta Ferretti poses with Alitalia airline crew during the official presentation of Alitalia's new Alberta Ferretti-designed uniforms in Milan, Italy, June 15, 2018. REUTERS/Stefano Rellandini

An Alitalia airplane prepares to land at the Charles de Gaulle Airport in Roissy, near Paris, France, April 28, 2018. REUTERS/Christian Hartmann

An EasyJet airplane is seen on the tarmac at the Charles De Gaulle airport in Paris, France, April 10, 2018. REUTERS/Stefano Rellandini

An EasyJet airplane is seen on the tarmac at the Charles De Gaulle airport in Paris, France, April 10, 2018. REUTERS/Stefano Rellandini

An EasyJet airplane is seen on the tarmac at the Charles De Gaulle airport in Paris, France, April 10, 2018. REUTERS/Stefano Rellandini

An Alitalia Airbus A320-214 passenger jet arrives at Malta International Airport outside Luqa, Malta, January 18, 2018. REUTERS/Darrin Zammit Lupi

An Alitalia Airbus A320-200 passenger aircraft takes off at Fiumicino International Airport in Rome, Italy January 15, 2018. REUTERS/Max Rossi

The Alitalia Boeing 777-200ER airplane carrying Pope Francis for his trip to Chile and Peru takes off at Fiumicino International Airport in Rome, Italy, January 15, 2018. REUTERS/Max Rossi

An Alitalia passenger aircraft prepares to land at Fiumicino International airport in Rome, Italy January 13, 2018. REUTERS/Max Rossi

An Alitalia passenger aircraft prepares to land at Fiumicino International airport in Rome, Italy January 13, 2018. REUTERS/Max Rossi

An Alitalia Airbus A320-200 aircraft is seen at Zurich Airport January 9, 2018. REUTERS/Arnd Wiegmann

An Alitalia Airbus A320-200 aircraft is seen at Zurich Airport January 9, 2018. REUTERS/Arnd Wiegmann

Ryanair CEO Michael O'Leary poses following a news conference in Rome, Italy, June 27, 2017. REUTERS/Alessandro Bianchi

Ryanair CEO Michael O'Leary poses following a news conference in Rome, Italy, June 27, 2017. REUTERS/Alessandro Bianchi