Delta Air Lines is America's oldest operating airline, the second largest airline in the world, and the world's most valuable air carrier. All that's to say, its a huge airline, and it's one of ...

US airlines have the world's four largest fleets. Here's how the Boeing and Airbus planes operated by Delta, United, American ...

Delta Air Lines is partnering with California-based start-up JetZero to design a more fuel-efficient blended-wing-body aircraft that will cut emissions by about half. JetZero is now the newest member ...