One of Europe's biggest airlines is struggling to roll out its much-anticipated new business-class cabin, hampering its network and revenue.Peter Kneffel/picture alliance via Getty Images ...

Lufthansa’s final A340-600 flights close a long-running chapter in premium quadjet travel.

Lufthansa, Germany’s flag carrier, has always been known for its incredibly diverse fleet, including almost all Airbus and Boeing commercial jet airliners ever produced. One of the rare birds that ...