Boeing and Airbus say installations of new seats are holding up aircraft deliveries. Supply chain issues and certification of new first- and business-class seat ... For example, Delta Air Lines ...

Delta Air Lines Inc. will offer Shake Shack Inc. burgers to first class passengers on longer flights ... which are more of a money-maker than the cramped seats toward the back of the plane.

launch basic economy tickets Delta Air Lines slashes earnings outlook on weaker U.S. demand, sending shares lower First-class seats are getting so fancy they’re holding up new airplanes ...