With priority boarding, I was on Lufthansa's Airbus A320-200 in no time. The business-class cabin had three seats on each side, as in economy — but the middle seats were left empty in each row.

While Lufthansa has ... all-aisle access (AAA) business class. Discover Airlines disclosed that it will take delivery of six Airbus A330-300 and at least three Airbus A320 aircraft in the next ...