A cyberattack at a service provider for check-in and boarding systems has disrupted operations at several major European airports including London’s Heathrow, Brussels and Berlin, causing flight delays and cancellations on Saturday.
Collins Aerospace, which provides check-in and boarding systems for several airlines across multiple airports globally, is experiencing a technical issue which will cause delays for departing passengers, London’s Heathrow Airport said on Saturday, having warned of delays.
RTX Corporation, Collins Aerospace’s parent, was not immediately available for comment outside of US business hours.

The attack has rendered automated systems inoperable, allowing only manual check-in and boarding procedures, Brussels Airport said on its website.
“This has a big impact on the flight schedule and can unfortunately cause delays and cancellations of flights…The service provider is actively working on the difficulty and attempting to resolve the issue as quickly as possible.”
Passengers with a flight scheduled for Saturday were advised by the affected airports to substantiate their travel with airlines before heading to the airport.

“As a result of a technical issue at a system provider operating across Europe, there are longer waiting times at check-in. We’re working on a fast solution,” Berlin Airport said in a banner on its website.
Frankfurt Airport, Germany’s largest, was not affected, a spokesperson said.
An official from the operations control center at Zurich Airport also said it had not been impacted.