“Every 3 hours the safety of a flight within the EU is threatened by passengers demonstrating unruly or disruptive behaviour. At least 70% of these incidents involve some form of aggression. Once a month the situation escalates to such a degree forcing the plane to perform an emergency landing.
The number of reported incidents in 2018 shows an increase of 34% when compared to 2017.
Even though the number of unruly passengers is small considering the total number of people flying, the impact of their actions can have a disproportionate effect both on the smooth operation of the flight and, most importantly, on its safety. The rise in serious unruly passenger behaviour is a great concern to the aviation community and particularly to Airlines.”
Find more from European Union Aviation Safety Agency (April, 2019)