The main workers union said Lufthansa cabin begin a strike on Friday, a week after last-minute negotiations between employees and the German airline failed to reach a solution.
"On Friday we will begin the strike," the UFO union, noting that the strike would begin no earlier than 1100 GMT and Friday morning give details said in a statement.
Lufthansa, which saw its results affected by 130 million euros (141 million dollars) so far this year by strikes, said that as the union has not given details of the shutdown can not start preparing the rescheduling of flights.
The Swiss, Austrian Airlines, Germanwings, Eurowings and Brussels Airlines airlines belonging to the Lufthansa group will not be affected by the strike.
The airline is negotiating with various groups of staff while trying to cut costs. Talks on pensions and early retirement benefits have encountered strong opposition from workers.
Lufthansa shares extended losses after the announcement of the strike and closed down nearly 4 percent.