Cyberattack Causes Delays at Heathrow and Other Airports in Europe NYT | Top Stories By: John Yoon and Ashley Ahn 21 September 2025 at 01:36 A disruption to check-in and boarding systems used by multiple airports had snarled departures through Saturday at airports in Berlin, Brussels, Dublin and London. © Isabel Infantes/ReutersIn London, Heathrow Airport, one of the world’s busiest, said on social media that departing passengers could face delays.