Travellers leaving London’s Heathrow Airport were facing delays Saturday because of a cyber attack affecting the electronic check-in systems. File Photo by Vickie Flores/EPA-EFE
Travellers leaving London’s Heathrow Airport were facing delays Saturday because of a cyber attack affecting the electronic check-in systems.
“Collins Aerospace, which provides check-in and boarding systems for several airlines across multiple airports globally, is experiencing a technical issue that may cause delays for departing passengers,” the airport said on X.
“While the provider works to resolve the problem quickly, we advise passengers to check their flight status with their airline before travelling. Please arrive no earlier than three hours before a long-haul flight or two hours before a domestic flight.”
Collins Aerospace, which provides check-in and boarding systems for several airlines across multiple airports globally, is experiencing a technical issue that may cause delays for departing passengers.
While the provider works to resolve the problem quickly, we advise… pic.twitter.com/f68e9CbIlu— Heathrow Airport (@HeathrowAirport) September 20, 2025
Passengers were experiencing similar delays at Berlin-Brandenburg Airport in Germany and Brussels Airport in Belgium.
Brussels Airport warned travelers to expect the delays to continue through Sunday, with only manual check-in available.
“A cyberattack occurred at the external service provider of the check-in and boarding systems, affecting several European airports,” the airport said on its website.
“This means that currently only manual check-in and boarding are possible. This has a major impact on the flight schedule and will unfortunately cause flight delays and cancellations.”
The Berlin-Brandenburg Airport was issuing a message on its website for all outbound passengers, scrolling across the top of the screen.
“Due to a technical issue at a system provider operating across Europe, there are longer waiting times at check-in. We are working on a quick solution,” the airport said.
Collins Aerospace is based in Cedar Rapids, Iowa and bills itself as one of the world’s largest suppliers of aerospace and defense products.
The company is owned by RTX Corporation,the American multinational aerospace conglomerate headquartered in Arlington, Va., formerly known as Raytheon.
The company acknowledged a “cyber-related disruption” with its software, which is used by around 300 airlines and across some 100 airports.
The flight-tracking website Flightaware 10 cancellations and more than 290 delays across the three affected airports thus far as of late Saturday morning, although it wasn’t clear how many were specifically related to the cyberattack.
