More flights to and from Frankfurt airport have been cancelled as strike action has been extended until Friday evening.
Representatives of the air traffic controllers union GdF said the strike, which began last Thursday over demands for better pay, will last until 11pm on February 24.
Lufthansa cancelled 200 flights yesterday and expected to cancel a further 160 today.
The airline said on its website: "Measures taken by Lufthansa and Fraport to limit the impact of strike actions on flight operations at Frankfurt airport are working out so that passengers can be provided with a reliable special timetable."
Passengers are being offered refunds or the opportunity to rebook free of charge for flights cancelled by the strike, the airline said.
British Airways has also cancelled a few flights to Frankfurt. The carrier advised passengers to check the status of their flight before leaving for the airport.
By Diane Evans
