Lufthansa's new cabin concept, Allegris, is now available on flights from Munich to several U.S. cities. Allegris features redesigned seats in all classes, from first class suites to economy.

For passengers in premium cabins, JetBlue ranked as the highest in the first or business class category, followed by Delta and Alaska. In premium economy, the No. 1 spot was award to Delta’s ...

but the privacy wings are a new feature that earlier adopters of the class may not have rolled out yet. Lufthansa’s new Allegris economy seats include a large, high-definition seatback screen ...