Definition
A developing air traffic management concept in which pilots are given greater authority to choose their own routes, altitudes, and speeds in real time, rather than being assigned fixed routes and clearances by air traffic control. Separation from other traffic is maintained through onboard equipment and shared electronic data, with controllers intervening only when conflicts cannot be resolved by the aircraft themselves.
Plain English
A way of running air traffic where pilots pick their own best path through the sky instead of following set airways, and controllers only step in if two aircraft are heading for trouble.
Context Anchor
Seen in discussions of air traffic control, airspace planning, and future navigation systems rather than as a normal cockpit maneuver.
Derivation
The phrase combines 'free,' meaning unrestricted, with 'flight.' It was chosen to contrast with the traditional system where aircraft are confined to specific published routes and altitudes assigned by ATC.
Why Pilots Care
It supports more direct routing that reduces fuel burn and flight time when traffic density and technology permit.
Intuition Check
Free Flight does not mean flying wherever you want with no oversight. It means more flexible routing while still maintaining safety and required spacing from other aircraft.
Example Sentence 1
Under Free Flight procedures, the crew selected a more direct route to save fuel, with ATC monitoring rather than assigning each waypoint.
Example Sentence 2
With ADS-B in use, ATC approved free flight operations so the pilot could climb to a smoother altitude without a specific vector.