How to read this timeline
Dates in aviation come with a warning. Terms such as “first flight” depend on the definition: lighter than air or heavier than air, glider or powered, hop or sustained, public or private. The entries below use widely cited dates, and notes flag where claims are disputed. The sequence runs from the first human flights in balloons to the jet age.
Before the airplane
1783. The Montgolfier brothers’ hot-air balloon carries the first human passengers on a free flight over Paris in November. Hydrogen balloons follow within weeks. Balloons establish that people can travel through the air but cannot steer well.
1799 to 1853. Sir George Cayley, an English engineer, sets out the idea of a fixed-wing aircraft with separate systems for lift, propulsion and control. In 1853 he builds a glider that carries a person, reportedly his coachman, across a valley.
1891 to 1896. Otto Lilienthal, in Germany, makes thousands of glider flights and publishes data on wing shapes. He dies in a glider crash in 1896. His work influences many later experimenters, including the Wright brothers.
Late 1890s to 1903. Other builders try powered craft. Samuel Langley’s steam-powered unpiloted models fly successfully in 1896, but his full-sized, piloted Aerodrome fails in launch attempts in October and December 1903. Some earlier claims, such as those for Clément Ader’s Éole hop in 1890, remain disputed, and pre-Wright aviation claims are generally viewed as uncontrolled hops.
The Wright era
1900 to 1902. The Wright brothers test gliders at Kitty Hawk, North Carolina, and build a wind tunnel to collect better wing data. Their 1902 glider includes a movable rudder coordinated with wing twisting.
December 17, 1903. The Wright Flyer makes four flights at Kill Devil Hills near Kitty Hawk. The first covers about 120 feet in 12 seconds, and the best of the day reaches 852 feet in 59 seconds. This is generally considered the first sustained, controlled, powered flight, although the first powered flight was seen by only a few witnesses.
1905. The Wrights’ Flyer III stays in the air for over half an hour, showing that powered flight can be practical.
1906 to 1909. Alberto Santos-Dumont flies the 14-bis in Paris in 1906, in a public, witnessed flight, and many in Europe regard this as the start of European aviation. Wilbur Wright’s demonstrations in France in 1908 impress observers. In 1909, Louis Blériot crosses the English Channel in a monoplane.
The First World War and the 1920s
1914 to 1918. Aircraft are first used for reconnaissance, then as fighters and bombers. Machine guns firing through propellers, enabled by synchronizing gear, change air combat. Aircraft engines and speeds improve greatly within a few years.
1919. John Alcock and Arthur Whitten Brown make the first nonstop flight across the Atlantic, in June. Airlines begin to appear in Europe.
1927. Charles Lindbergh flies solo and nonstop from New York to Paris in May, about 33 hours. The flight sparks great public interest in aviation, particularly in the United States.
The 1930s and the Second World War
1930s. All-metal monoplanes such as the Douglas DC-3 (first flown in 1935) make airline travel more practical. Radio navigation and early radar development improve safety and military capability. Early work on jet engines takes place in Britain and Germany.
1939. The Heinkel He 178 makes the first jet-powered flight on August 27.
1939 to 1945. Aircraft are central to the war. Fighters, bombers and transport planes are built in huge numbers. Air traffic control and aircraft navigation aids develop as airspace becomes crowded. Jet fighters enter service near the end of the war.
The jet age
1947. Chuck Yeager flies the rocket-powered Bell X-1 faster than the speed of sound in October.
1952. The de Havilland Comet begins the first jet airliner service. After two fatal accidents in 1954, the type is grounded and redesigned.
1958. Boeing 707 transatlantic service begins in October with Pan American. Jet travel becomes common during the 1960s.
1970. The Boeing 747 enters service.
1976. Concorde begins supersonic passenger service, which continues until 2003.
1980s to 1990s. Fly-by-wire airliners, glass cockpits with screen displays and satellite navigation arrive.
2000s onward. Newer airliners with composite structures and more efficient engines enter service, and unmanned aircraft become a growing part of aviation.
What the timeline shows
Progress did not come in one jump. Gliders taught control, engines supplied power, and wars and commerce drove improvements. Each date above sits inside a longer story, and many individual entries are still debated by historians.