Jets were a type of fixed-wing aircraft, driven by a jet engines, and supported in air by dynamic action.
One of the characters in the holosuite program Julian Bashir, Secret Agent, named Mona Luvsitt, was an accomplished Cold War-era jet pilot. (DS9: "Our Man Bashir")
During the 1960s, the US Air Force employed jets to protect its US 498th Airbase Group in Omaha, Nebraska. (TOS: "Tomorrow is Yesterday")
In the mirror universe, various jet fighters and bombers were used in the establishment and enforcement of the Terran Empire during its 20th century on Earth . (ENT: "In a Mirror, Darkly", "In a Mirror, Darkly, Part II" opening credits)
Toward the end of World War III in 2053, bomber jets were used to drop atomic weapons on their _targets. One of the places effected by this was Virginia. (DIS: "New Eden")
In 2151, a rebel faction on Coridan operated a jet aircraft. (ENT: "Shadows of P'Jem")
In 2152, jets were used by Gosis' species on their homeworld. (ENT: "The Communicator")