Workers of the airline Aeromar hold a banner that reads "Ground personnel in support of pilots" as they stand near the strike flags placed at the counters after the airline ended its operations, at the Benito Juarez International Airport, in Mexico City, Mexico February 20, 2023. REUTERS/Henry Romero 

Ilan Margalit, a 69-year-old former fighter pilot holds an Israeli flag at a demonstration by Israeli military reservists against proposed judicial changes by Israel's new right-wing government in Shoresh near Jerusalem, February 9, 2023. REUTERS/Amir Cohen 

An electronic display board is seen during a partial strike by Brazilian pilots and flight attendants demanding better pay and working conditions amid high inflation, at Congonhas Airport in Sao Paulo, Brazil, December 23, 2022. REUTERS/Carla Carniel 

People walk at Congonhas Airport during a partial strike by Brazilian pilots and flight attendants demanding better pay and working conditions amid high inflation, in Sao Paulo, Brazil, December 23, 2022. REUTERS/Carla Carniel 

People stand in line during a partial strike by Brazilian pilots and flight attendants demanding better pay and working conditions amid high inflation, at Congonhas Airport in Sao Paulo, Brazil, December 23, 2022. REUTERS/Carla Carniel 

People stand in line during a partial strike by Brazilian pilots and flight attendants demanding better pay and working conditions amid high inflation, at Congonhas Airport in Sao Paulo, Brazil, December 23, 2022. REUTERS/Carla Carniel 

People stand in line during a partial strike by Brazilian pilots and flight attendants demanding better pay and working conditions amid high inflation, at Congonhas Airport in Sao Paulo, Brazil, December 23, 2022. REUTERS/Carla Carniel 

People stand in line during a partial strike by Brazilian pilots and flight attendants demanding better pay and working conditions amid high inflation, at Congonhas Airport in Sao Paulo, Brazil, December 23, 2022. REUTERS/Carla Carniel 

Brazilian pilots and flight attendants attend a partial strike demanding better pay and working conditions amid high inflation, at Congonhas Airport in Sao Paulo, Brazil, December 23, 2022. REUTERS/Carla Carniel 

Brazilian pilots and flight attendants go on a partial strike demanding better pay and working conditions amid high inflation, at Sao Paulo International Airport, in Guarulhos, Brazil, December 19, 2022. REUTERS/Carla Carniel 

An airline worker crosses her arms as Brazilian pilots and flight attendants go on a partial strike demanding better pay and working conditions amid high inflation, at Sao Paulo International Airport in Guarulhos, Brazil, December 19, 2022. REUTERS/Carla Carniel 

People observe the flight panel at Sao Paulo International Airport as Brazilian pilots and flight attendants go on a partial strike demanding better pay and working conditions amid high inflation, in Guarulhos, Brazil, December 19, 2022. REUTERS/Carla Carniel 

A person observes the flight panel at Sao Paulo International Airport as Brazilian pilots and flight attendants go on a partial strike demanding better pay and working conditions amid high inflation, in Guarulhos, Brazil, December 19, 2022. REUTERS/Carla Carniel 

General view of the Sao Paulo International Airport as Brazilian pilots and flight attendants do a partial strike demanding better pay and working conditions amid high inflation, in Guarulhos, Brazil, December 19, 2022. REUTERS/Carla Carniel 

Kenya Airways workers check documents as the passangers stand after their flight was cancelled during a strike of Kenya Airways pilots, organised by Kenya Airline Pilots Association (KALPA), at the Jomo Kenyatta International Airport in Nairobi, Kenya November 7, 2022. REUTERS/Monicah Mwangi 

A Kenya Airways worker holds a document as the passengers stand after their flight was cancelled during a strike of Kenya Airways pilots, organised by Kenya Airline Pilots Association (KALPA), at the Jomo Kenyatta International Airport in Nairobi, Kenya November 7, 2022. REUTERS/Monicah Mwangi 

Passengers push their baggage after their Kenya Airways flight was cancelled during a strike of Kenya Airways pilots, organised by Kenya Airline Pilots Association (KALPA), at the Jomo Kenyatta International Airport in Nairobi, Kenya November 7, 2022. REUTERS/Monicah Mwangi 

Passengers stand next to their luggage after their Kenya Airways flight was cancelled during a strike of Kenya Airways pilots, organised by Kenya Airline Pilots Association (KALPA), at the Jomo Kenyatta International Airport in Nairobi, Kenya November 7, 2022. REUTERS/Monicah Mwangi 

Passengers use their mobile phones as they sit next to their luggage, after their Kenya Airways flight was cancelled during a strike of Kenya Airways pilots, organised by Kenya Airline Pilots Association (KALPA), at the Jomo Kenyatta International Airport in Nairobi, Kenya November 7, 2022. REUTERS/Monicah Mwangi 

A passenger reacts after her Kenya Airways flight was cancelled during a strike of Kenya Airways pilots, organised by Kenya Airline Pilots Association (KALPA), at the Jomo Kenyatta International Airport in Nairobi, Kenya November 7, 2022. REUTERS/Monicah Mwangi 

A passenger talks to a Kenya Airways worker after his flight was cancelled during the strike of Kenya Airways pilots, organised by Kenya Airline Pilots Association (KALPA), at the Jomo Kenyatta International Airport in Nairobi, Kenya November 7, 2022. REUTERS/Monicah Mwangi 

Aircrafts of Lufthansa's budget airline Eurowings stand on the tarmac of the Cologne-Bonn airport as Eurowings pilots go on a three-day strike, in Cologne, Germany, October, 17, 2022. REUTERS/Thilo Schmuelgen 

Aircrafts of Lufthansa's budget airline Eurowings stand on the tarmac of the Cologne-Bonn airport as Eurowings pilots go on a three-day strike, in Cologne, Germany, October, 17, 2022. REUTERS/Thilo Schmuelgen 

Aircrafts of Lufthansa's budget airline Eurowings stand on the tarmac of the Cologne-Bonn airport as Eurowings pilots go on a three-day strike, in Cologne, Germany, October, 17, 2022. REUTERS/Thilo Schmuelgen 

Aircrafts of Lufthansa's budget airline Eurowings stand on the tarmac of the Cologne-Bonn airport as Eurowings pilots go on a three-day strike, in Cologne, Germany, October, 17, 2022. REUTERS/Thilo Schmuelgen 

Aircrafts of Lufthansa's budget airline Eurowings stand on the tarmac of the Cologne-Bonn airport as Eurowings pilots go on a three-day strike, in Cologne, Germany, October, 17, 2022. REUTERS/Thilo Schmuelgen 

A view of Lufthansa's budget airline Eurowings logo, as their pilots go on a three-day strike, at Cologne-Bonn airport in Cologne, Germany, October 17, 2022. REUTERS/ Thilo Schmuelgen 

A passenger walks near Lufthansa's budget airline Eurowings empty check-in counters, as their pilots go on a three-day strike, at Cologne-Bonn airport in Cologne, Germany, October 17, 2022. REUTERS/ Thilo Schmuelgen 

Passengers walk near Lufthansa's budget airline Eurowings check-in counters as their pilots go on a three-day strike at Cologne-Bonn airport in Cologne, Germany, October 17, 2022. REUTERS/ Thilo Schmuelgen 

A passenger walks near Lufthansa's budget airline Eurowings check-in counters as their pilots go on a three-day strike at Cologne-Bonn airport in Cologne, Germany, October 17, 2022. REUTERS/ Thilo Schmuelgen 

Passengers line-up near Lufthansa's budget airline Eurowings check-in counters as their pilots go on a three-day strike at Cologne-Bonn airport in Cologne, Germany, October 17, 2022. REUTERS/ Thilo Schmuelgen 

A view of a time table showing cancelled flights as Eurowings pilots go on a three-day strike, in Cologne, Germany, October, 17, 2022. REUTERS/Thilo Schmuelgen 

A view of a time table showing cancelled flights as Eurowings pilots go on a three-day strike, in Cologne, Germany, October, 17, 2022. REUTERS/Thilo Schmuelgen 

A view of time tables showing cancelled flights as Eurowings pilots go on a three-day strike, in Cologne, Germany, October, 17, 2022. REUTERS/Thilo Schmuelgen 

A view of time tables showing cancelled flights as Eurowings pilots go on a three-day strike, in Cologne, Germany, October, 17, 2022. REUTERS/Thilo Schmuelgen 

An aircraft stands on the airfield as pilots at Lufthansa's budget airline Eurowings go on a one-day strike at Cologne-Bonn airport, Germany, October, 6, 2022. REUTERS/Benjamin Westhoff 

Passengers wait for check-in as pilots at Lufthansa's budget airline Eurowings go on a one-day strike at Cologne-Bonn airport, Germany, October, 6, 2022. REUTERS/Benjamin Westhoff 

Passengers wait for check-in as pilots at Lufthansa's budget airline Eurowings go on a one-day strike at Cologne-Bonn airport, Germany, October, 6, 2022. REUTERS/Benjamin Westhoff 

A display shows canceled flights as pilots at Lufthansa's budget airline Eurowings go on a one-day strike at Cologne-Bonn airport, Germany, October, 6, 2022. REUTERS/Benjamin Westhoff 

Passengers wait for check in as pilots at Lufthansa's budget airline Eurowings go on a one-day strike at Cologne-Bonn airport, Germany, October, 6, 2022. REUTERS/Benjamin Westhoff 

Passengers wait for check in as pilots at Lufthansa's budget airline Eurowings go on a one-day strike at Cologne-Bonn airport, Germany, October 6, 2022. REUTERS/Benjamin Westhoff 

Passengers look at a screen showing canceled flights as pilots at Lufthansa's budget airline Eurowings go on a one-day strike at Cologne-Bonn airport, Germany, October, 6, 2022. REUTERS/Benjamin Westhoff 

Passengers wait for check in as pilots at Lufthansa's budget airline Eurowings go on a one-day strike at Cologne-Bonn airport, Germany, October 6, 2022. REUTERS/Benjamin Westhoff 

President Clemens Kopetz of AEROPERS - Airline Pilots Association makes a speech during a protest in front of the headquarters of Swiss International Air Lines in Kloten, Switzerland September 29, 2022. REUTERS/Arnd Wiegmann 

President Clemens Kopetz of AEROPERS - Airline Pilots Association makes a speech during a protest in front of the headquarters of Swiss International Air Lines in Kloten, Switzerland September 29, 2022. REUTERS/Arnd Wiegmann 

Members of AEROPERS - Airline Pilots Association display posters during a protest in front of the headquarters of Swiss International Air Lines in Kloten, Switzerland September 29, 2022. REUTERS/Arnd Wiegmann 

Members of AEROPERS - Airline Pilots Association display posters during a protest in front of the headquarters of Swiss International Air Lines in Kloten, Switzerland September 29, 2022. REUTERS/Arnd Wiegmann 

A member of AEROPERS - Airline Pilots Association kisses her four month-old son Hendrik during a protest in front of the headquarters of Swiss International Air Lines in Kloten, Switzerland September 29, 2022. REUTERS/Arnd Wiegmann 

Members of AEROPERS - Airline Pilots Association carry posters on their march to protest in front of the headquarters of Swiss International Air Lines in Kloten, Switzerland September 29, 2022. REUTERS/Arnd Wiegmann 

Members of AEROPERS - Airline Pilots Association display posters during a protest in front of the headquarters of Swiss International Air Lines in Kloten, Switzerland September 29, 2022. REUTERS/Arnd Wiegmann 

Members of AEROPERS - Airline Pilots Association display posters during a protest in front of the headquarters of Swiss International Air Lines in Kloten, Switzerland September 29, 2022. REUTERS/Arnd Wiegmann 

Members of AEROPERS - Airline Pilots Association carry posters on their march to protest in front of the headquarters of Swiss International Air Lines in Kloten, Switzerland September 29, 2022. REUTERS/Arnd Wiegmann 

Members of AEROPERS - Airline Pilots Association carry posters on their march to protest in front of the headquarters of Swiss International Air Lines in Kloten, Switzerland September 29, 2022. REUTERS/Arnd Wiegmann 

Members of AEROPERS - Airline Pilots Association carry posters on their march to protest in front of the headquarters of Swiss International Air Lines in Kloten, Switzerland September 29, 2022. REUTERS/Arnd Wiegmann 

Members of AEROPERS - Airline Pilots Association carry posters on their march to protest in front of the headquarters of Swiss International Air Lines in Kloten, Switzerland September 29, 2022. REUTERS/Arnd Wiegmann 

FedEx Express pilots, represented by the Airline Pilots Association International, picket outside the New York Stock Exchange (NYSE) in New York City, U.S., September 26, 2022. REUTERS/Brendan McDermid 

FedEx Express pilots, represented by the Airline Pilots Association International, picket outside the New York Stock Exchange (NYSE) in New York City, U.S., September 26, 2022. REUTERS/Brendan McDermid 

FedEx Express pilots, represented by the Airline Pilots Association International, picket outside the New York Stock Exchange (NYSE) in New York City, U.S., September 26, 2022. REUTERS/Brendan McDermid 

FedEx Express pilots, represented by the Airline Pilots Association International, picket outside the New York Stock Exchange (NYSE) in New York City, U.S., September 26, 2022. REUTERS/Brendan McDermid 

FedEx Express pilots, represented by the Airline Pilots Association International, picket outside the New York Stock Exchange (NYSE) in New York City, U.S., September 26, 2022. REUTERS/Brendan McDermid