This listing of flight altitude records are the records set for the highest aeronautical flights conducted in the atmosphere, set since the age of ballooning.
Explorer II gondola, 1935
In 1931, Auguste Piccard and Paul Kipfer (photo) reached a record altitude of 15,781 m. In 1932, Auguste Piccard and Max Cosyns made a second record-breaking ascent to 16,201 m. Auguste Piccard ultimately made a total of twenty-seven balloon flights, setting a final record of 23,000 m [citation needed].
In aeronautics, a balloon is an unpowered aerostat, which remains aloft or floats due to its buoyancy. A balloon may be free, moving with the wind, or tethered to a fixed point. It is distinct from an airship, which is a powered aerostat that can propel itself through the air in a controlled manner.
A hot air balloon in flight
In 1999, Bertrand Piccard and Brian Jones achieved the first non-stop balloon circumnavigation in Breitling Orbiter 3.
"Aerostation out at Elbows, or The Itinerant Aeronaut" print illustration and poem (1785)
Hot air balloons, San Diego