BRUSSELS: European airports were starting to recover on Sunday from a cyberattack affecting their check-in systems that had caused flight cancellations and huge delays for thousands of passengers over the past two days.
While Brussels airport said almost one-fifth of Sunday’s scheduled departures had been cancelled, other affected hubs said their schedules were getting back to normal.
London Heathrow and Dublin airports said they were managing passenger flows while they tried to fix the problem with the software.
Dublin airport said it expected to function normally throughout Sunday.
Its âteam is continuing to support airlines today as they deal with the ongoing disruption caused by a Europe-wide technical issue that is impacting their check-in and boarding systems,â it said in a post on X.
Heathrow Airport said in a statement that the âvast majority of flightsâ continued to be operated thanks to collaboration with the airlines.
A Brussels airport spokeswoman said 45 of 257 departing flights had been cancelled and passengers could expect delays of âbetween 30 and 90 minutesâ.
Airports began reporting problems with passenger check-in software supplied by Collins Aerospace on Friday.
The company said on Saturday it was âactively working to resolve the issue and restore full functionality to our customers as quickly as possibleâ.
The aviation tech company, which specialises in digital and data processing services, is a subsidiary of the American aerospace and defence group RTX, formerly known as Raytheon.
Cyberattacks and tech outages have disrupted airports around the world in recent years, from Japan to Germany, as air travel increasingly relies on online, interconnected systems.
The aviation sector saw a 600% increase in cyberattacks from 2024 to 2025, according to a report by French aerospace company Thales released in June.









