in flight
Defined in 1 dictionary — U.S. Code
United States Code
18 U.S.C. § 31 — in this chapter (3 versions over time)
The term “in flight” means—
(A) any time from the moment at which all the external doors of an aircraft are closed following embarkation until the moment when any such door is opened for disembarkation; and
(B) in the case of a forced landing, until competent authorities take over the responsibility for the aircraft and the persons and property on board.