Overview

• Brussels Airport canceled 45 of 257 Sunday flights and reported check-in delays of 30 to 90 minutes, though queue times eased after operational adjustments.
• London Heathrow said disruptions had eased by early Sunday, but some delays persisted as automated systems were brought back online.
• Berlin Brandenburg applied a manual workaround and reported no significant delays or cancellations on Sunday after earlier indirect disruption.
• Reuters and local outlets attribute the disruption to an attack on Collins Aerospace systems used for automated passenger check-in across multiple hubs.
• Authorities said the source of the incident is under investigation, and airports emphasized that flights can proceed using manual processing when needed.