why are flights delayed today

Flights are delayed today primarily due to a cyberattack targeting the check- in and boarding systems service provider Collins Aerospace. This attack has disrupted technical systems at major European airports, including London's Heathrow, Brussels Airport, and Berlin Brandenburg Airport, leading to extended waiting times, forced manual check-in and boarding processes, and numerous flight delays and cancellations. Passengers have experienced long queues and delays because automated services are down, and airports are working to mitigate the issue as quickly as possible while advising travelers to check flight statuses before arriving.