MULTIPLE EUROPEAN AIRPORTS, including Brussels, Berlin and London’s Heathrow have been hit by “cyber-related disruption” affecting check-in and baggage drop systems and causing delays, according to airport service provider Collins Aerospace.

“We have become aware of a cyber-related disruption to our MUSE software in select airports,” the aerospace firm said, after at least three busy European air hubs reported facing disruption and warned of delays.

“The impact is limited to electronic customer check-in and baggage drop and can be mitigated with manual check-in operations,” Collins Aerospace added.

At least 10 flights were cancelled out of Brussels Airport and another 17 delayed by over an hour after the system was hit by a “cyberattack” overnight on Friday, the airport said.

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

Only manual check-in and boarding was taking place at the Brussels air hub, which advised passengers flying on Saturday to check their flight status with airlines before going to the airport.

London’s Heathrow Airport – the busiest in Europe – said its check-in and boarding systems, also provided by Collins Aerospace, were hit by a “technical issue” that “may cause delays for departing passengers”.

A banner on the Berlin Airport website read: ”Due to a technical issue at a system provider operating across Europe, there are longer waiting times at check-in.”

‘Insane’ 

“They didn’t tell us anything. It’s always crowded here, but today is like extra,” said a 41-year-old architect, who gave her first name as Rowan.

“If the system is down they should delay the flight. That’s what I’m hoping,” she added, waiting in the packed check-in area at Heathrow’s Terminal 4 for a Saudia Airlines flight to Jeddah.

Another woman waiting for an Air Algerie flight to Algeria said she had waited for over an hour to check in.

“They said they’re doing everything manually. That’s all they’ve told us,” said the 30-year-old, asking not to give her name.

Freelance journalist Tereza Pultarova was booked on a flight to Amsterdam with a connection onto a KLM flight to Cape Town.

“They were checking in people at the rate of, like, one person per 10 minutes,” she said, adding it looked like she would miss a once-in-a-lifetime work trip to the Karoo desert which would probably head off without her.

“It was just insane, the queue wasn’t moving.”