Built in 1967 to produce the mammoth jet, it remains the world's largest manufacturing plant according to Boeing. But after five decades, customer demand for the 747 eroded as Boeing and Airbus (AIR.PA) developed more fuel efficient two-engine widebody planes.

The iconic Boeing 747, known as the "Queen of the Skies," saw its final aircraft roll off the production line in early 2023 because the aviation industry has shifted toward efficiency over sheer size. In the era of the 747's inception, four engines were necessary for long-range, transoceanic flight. However, modern engineering has developed incredibly powerful and reliable twin-engine jets like the Boeing 787 Dreamliner, the Boeing 777X, and the Airbus A350. These newer planes burn significantly less fuel, require less maintenance, and are much quieter. Additionally, airlines have moved away from the "hub-and-spoke" model (where massive planes fly between major hubs) in favor of point-to-point travel, which utilizes smaller, more efficient aircraft to fly directly to secondary cities. The quadruple-engine design of the 747 simply became an economic burden for passenger airlines, leading to its retirement from production. While it continues to be a favorite for cargo carriers due to its unique nose-loading door and massive capacity, its days as a new passenger airliner have officially concluded.