Lufthansa canceled its first international long-haul flights on Wednesday, as a strike by ground and cabin crew at Germany's biggest airline entered its third day, the company said. Deutsche Lufthansa AG said it canceled four long-haul roundtrips to destinations in the US, India and Canada. The rest of the 78 flights canceled Wednesday were for destinations in Germany and Europe. Spokeswoman Amelie Lorenz said the canceled flights accounted for about 4 percent of the airline's total flight capacity. She said affected passengers were being put on flights operated by other airlines. Lufthansa Chief Executive Wolfgang Mayrhuber said the cost of the strike was not yet clear.