By 8 am Monday morning, 200 flights had been cancelled, a Lufthansa spokesperson told news agency DDP, adding that the biggest delays were at the Munich and Frankfurt airports.
The airline advised passengers to call customer service lines or check via internet whether their flights were affected by the strikes. Flight rescheduling will be free of charge.
The strikes by some 1,000 pilots are “unnecessary," according to a Lufthansa statement,
The pilot strike comes after several months of collapsed wage negotiations, with the 8,200-member pilot union Cockpit accusing Lufthansa of failing to make any reasonable offers.
The strike comes after pilots staged warning strikes in May to increase pressure on Lufthansa.