Delayed passengers wait with their luggage at Terminal 3 of London Heathrow airport, west of London on September 8, 2026, following major disruption due an issue affecting the NATS air traffic control systems. Flights to and from the UK were cancelled on on September 8, due to a "technical issue" affecting UK's National Air Traffic Services (NATS), which says it is working to resolve the situation. (Photo by Henry NICHOLLS / AFP via Getty Images)

Delayed passengers wait with their luggage at Terminal 3 of London Heathrow airport, west of London on September 8, 2026, following major disruption due an issue affecting the NATS air traffic control systems. Flights to and from the UK were cancelled on on September 8, due to a "technical issue" affecting UK's National Air Traffic Services (NATS), which says it is working to resolve the situation. (Photo by Henry NICHOLLS / AFP via Getty Images)

Delayed passengers wait with their luggage at Terminal 3 of London Heathrow airport, west of London on September 8, 2026, following major disruption due an issue affecting the NATS air traffic control systems. Flights to and from the UK were cancelled on on September 8, due to a "technical issue" affecting UK's National Air Traffic Services (NATS), which says it is working to resolve the situation. (Photo by Henry NICHOLLS / AFP via Getty Images)

Delayed passengers wait with their luggage at Terminal 3 of London Heathrow airport, west of London on September 8, 2026, following major disruption due an issue affecting the NATS air traffic control systems. Flights to and from the UK were cancelled on on September 8, due to a "technical issue" affecting UK's National Air Traffic Services (NATS), which says it is working to resolve the situation. (Photo by Henry NICHOLLS / AFP via Getty Images)

Cancelled flights are pictured on an electronic check-in display board at Terminal 3 of London Heathrow airport, west of London on September 8, 2026, following major disruption due an issue affecting the NATS air traffic control systems. Flights to and from the UK were cancelled on on September 8, due to a "technical issue" affecting UK's National Air Traffic Services (NATS), which says it is working to resolve the situation. (Photo by Henry NICHOLLS / AFP via Getty Images)

French trade union General Confederation of Labour (CGT) members take part in a union rally calling for an emergency plan for public services and public sector workers, in front of Bercy, France's Economy and Finance Ministry in Paris on September 8, 2026. (Photo by Ian LANGSDON / AFP via Getty Images)

French trade union General Confederation of Labour (CGT) members take part in a union rally calling for an emergency plan for public services and public sector workers, in front of Bercy, France's Economy and Finance Ministry in Paris on September 8, 2026. (Photo by Ian LANGSDON / AFP via Getty Images)

French trade union General Confederation of Labour (CGT) members take part in a union rally calling for an emergency plan for public services and public sector workers, in front of Bercy, France's Economy and Finance Ministry in Paris on September 8, 2026. (Photo by Ian LANGSDON / AFP via Getty Images)