The Gordon Bennett Cup is the world's oldest gas balloon race, and is "regarded as the premier event of world balloon racing" according to the Los Angeles Times. Referred to as the "Blue Ribbon" of aeronautics, the first race started from Paris, France, on September 30, 1906. The event was sponsored by James Gordon Bennett Jr., the millionaire sportsman and owner of the New York Herald newspaper. According to the organizers, the aim of the contest "is simple: to fly the furthest distance from the launch site." The contest ran from 1906 to 1938, interrupted by World War I and in 1931, but was suspended in 1939 when the hosts, Poland, were invaded at the start of World War II. The event was not resurrected until 1979, when American Tom Heinsheimer, an atmospheric physicist, gained permission from the holders to host the trophy. The competition was not officially reinstated by the Fédération Aéronautique Internationale (FAI) until 1983.

A gas balloon is a balloon that rises and floats in the air because it is filled with a gas lighter than air. When not in flight, it is tethered to prevent it from flying away and is sealed at the bottom to prevent the escape of gas. A gas balloon may also be called a Charlière for its inventor, the Frenchman Jacques Charles. Today, familiar gas balloons include large blimps and small latex party balloons. For nearly 200 years, well into the 20th century, manned balloon flight utilized gas balloons before hot-air balloons became dominant. Without power, heat or fuel, untethered flights of gas balloons depended on the skill of the pilot. Gas balloons have greater lift for a given volume, so they do not need to be so large, and they can stay up for much longer than hot air balloons.