Who invented passenger airplanes?

The concept of the passenger airplane was not born from a single person or a single flight, but from the gradual evolution of aviation following the Wright brothers' first powered flight in 1903. Over the following decade, various pioneers in Europe and the United States adapted existing airplanes to carry one or two passengers, long before any organized air transport industry existed. Even earlier, Zeppelin airships had already been carrying paying passengers in Germany since 1910, although they were not fixed-wing aircraft.

The world's first airline with a timetable and paid tickets was the St. Petersburg-Tampa Airboat Line, which began operating on January 1, 1914, in Florida with a Benoist flying boat piloted by Tony Jannus. The route, barely 30 km across Tampa Bay, lasted about 23 minutes and carried a single passenger per flight. From there, European companies such as KLM (founded in 1919) began building the first networks of scheduled routes, already using aircraft specifically designed to carry several passengers at once.

In the following decades, manufacturers such as Boeing, Douglas, and Junkers refined the metal fuselage, the pressurized cabin, and more reliable engines, leading to the Douglas DC-3 in the 1930s, considered the first truly profitable model for mass transport. The arrival of commercial jets in the 1950s, with the De Havilland Comet and later the Boeing 707, completed the transformation of the passenger airplane into the mode of transport we know today.