Strike What is the causes of pilots strike? Lufthansa a German airline been force to cancels 3800 flights due to a strike plan been plan by pilots. Pilots run this plan because they were unsatisfied with the early retirement plan .Many offer had been given but it did not accept by the pilots . There were 5400 pilot participate. This strike plan causes big profit loss for the Lufthansa airline. Those customer change their booking dates and some were transfer to another airlines . This causes â‚Ź30-million to â‚Ź50-million lost in profit.