<h1>International flight delayed over three hours by late aircraft, ATC congestion, and crew limits, prompting passenger unrest and unruly labels</h1> A commercial international flight experienced a departure delay exceeding three hours attributed to multiple operational causes, including late incoming aircraft, air traffic congestion and crew exceeding their duty time limitations, with the operative effect that the flight's scheduled 4:05 am departure ultimately occurred at 7:45 am. Two passengers were formally characterised as 'unruly' following alleged inappropriate conduct during the wait, with the operative effect being their designation as unruly on board. Passengers allege an absence of communication from the carrier during the delay, with the operative effect evident in onboard altercations and passenger frustration.