Due to regulatory delays, Delta Air Lines is temporarily changing plans for several A321neo jets — with a massive expansion of first-class seating.

Delta Air Lines is quietly making a change for passengers, and it includes some unexpected upgrades for travelers.

Delta's got more firepower underlying its earnings generation and is more reasonably priced than United.

Delta Air Lines is studying new types of airplane tickets — this time in the premium cabins at the front of the plane. But now airline executives are turning their focus to their premium cabins, where ...