Lufthansa customers can get scared and anxious.
The Verdi union has shown that it is willing to paralyze an airline for a day in the high season with a warning strike by ground staff with a short warning period.
A repetition is possible, Verdi only excludes them for just under a week until the next hearing.
The pilots agree beforehand whether they also want to be ready to go on strike during the holidays.
At Lufthansa, reliability for customers is at stake - after cancellations due to bottlenecks, it is already scratched.
Wide compensation range
The starting points in the conflicts are different.
The company, whose longest-serving pilots earn more than €200,000 a year, employs workers at the other end of the pay range who are not yet being paid the future minimum wage of €12 an hour.
Verdi addresses a serious problem.
However, that does not justify the call for a walkout with a business-damaging extent - especially not after two hearings in which the employer has shown that he also sees the situation for the lowest salary brackets as a problem.
What both conflicts have in common is that the collective bargaining partners mistrust each other.
Working together in dire need at the beginning of the Corona crisis has given way to old patterns of struggle, the customer has to endure it.
It's not a concept for the future.
Lufthansa quickly repaid state aid, but debts remained.
In the face of global competition, the Group will not be able to permanently afford top salaries that stand out internationally.
Kerosene and climate protection make flying more expensive anyway.
So far, Lufthansa has founded new subsidiaries with more favorable structures as a way out.
This made the group more complex and fueled the mistrust of the trade unions, which for their part refused to make concessions.
Unless both sides rethink, Lufthansa is heading into a difficult phase.
Germany is still represented by a company that is one of the world's best in aviation, but that is by no means the case in every industry.