Lufthansa cabin crew will strike again on Tuesday and extend work stoppages, after a strike on Friday over pay and cost-cutting measures brought Frankfurt airport to a standstill.
The union on Tuesday plans to strike for longer than the eight hours on Friday and at more airports but is still considering where and when, it said in a statement on its website. It will warn at least six hours before new stoppages start, it said.
A spokesman for Lufthansa said the airline had little possibility to prepare for the strike and was not planning to improve its offer to increase wages by 3.5 percent in exchange for longer working hours.
The cabin crew union UFO is demanding a 5 percent pay rise and guarantees that Lufthansa will not outsource jobs and use more temporary workers.
The first day of action cost Lufthansa millions of euros and forced it to cancel another 19 flights on Saturday, it said.
Lufthansa is facing more negotiations about pay as the tariff agreement with the pilot union Cockpit is ending in coming months.
German magazine Der Spiegel reported, without saying where it obtained the information, that Lufthansa plans to start negotiating with the union on September 10. A spokesman declined to comment on the date.