The seven-day strike by unions representing Air France’s flight attendants will cost the Franco-Dutch airline group more than E90m, the company said Tuesday. Flight attendants at the French arm of Air France-KLM walked out on July 27 until Aug. 2, demanding an expiring labor contract be renewed for a period longer than the 18 months management has offered. Contract talks are expected to resume later this month. The company Tuesday said it had cancelled 1,400 flights, though 80% of short- and medium-haul flights were maintained, as were 90% of long-haul flights. In 2015, Air France-KLM managed to post a net profit after losing money for eight years. The turnaround mainly reflected falling fuel prices and cost reductions.<br/>