The latest strike by pilots at Germany’s Lufthansa airline has cost the company €100 million, according to the company.
The action in November lasted six days and caused major disruption for hundreds of thousands of would-be passengers.
"Lufthansa had to cancel around 4,500 flights because of the strike. More than half a million passengers were affected. Strikes will weigh down Lufthansa's profits in the fourth quarter by around 100 million euros," the airline said in a statement on Friday.
Other airlines benefitted from the cancellations, with Austrian Airlines and Swiss Air deploying larger aircraft on flights in and out of Germany.
The dispute over pay led by Lufthansa’s Cockpit union has seen 15 strikes since 2014. The union holds that its members have not had an increase in wages in the last five years although the company has been in profit.
A fresh offer, including a 4.4% pay increase over two years and a one-off bonus, is now on the table which union leaders are considering.
In October, Lufthansa Group said it projected annual earnings of €1.8 billion before tax, which it said was “approximately” the same level as the previous year.