Major European Airports Experience Major Delays Due to Cyberattack

September 21, 2025

Travelers at leading European airports such as Heathrow, Brussels, and Berlin faced significant disruptions this weekend following a cyber-related incident affecting airline systems. Collins Aerospace, which supplies technology for airline check-in procedures, reported the disruption, forcing airlines to revert to manual check-ins.

According to data from Flightradar24, over 130 flights departing from Heathrow were delayed by 20 minutes or more as of Sunday morning, with 13 cancellations on Saturday. Heathrow's official social media account stated, "Work continues to resolve and recover from Friday’s outage of a Collins Aerospace airline system that impacted check-in. We apologise to those who have faced delays, but by working together with airlines, the vast majority of flights have continued to operate."

In response to the incident, Heathrow and other affected airports advised travelers to arrive at least three hours before departure for long-haul flights and at least two hours for short-haul flights to accommodate possible delays.

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