Definition
A preplanned instrument flight rules (IFR) air traffic control arrival procedure published in graphic and textual form. STARs provide transition from the en route structure to a fix or point from which an approach to landing can be made, and contain specific routes, altitudes, and speeds that pilots are expected to follow unless otherwise cleared by ATC.
Plain English
A published, named route that guides arriving IFR aircraft from the en route phase down to the area near the destination airport, where they can begin an approach. It tells the pilot which path to fly, what altitudes to descend through, and what speeds to use, so arrivals into busy airspace are organized and predictable.
Context Anchor
Pilots encounter STARs in instrument clearances, arrival planning, cockpit navigation systems, and published arrival charts for larger or busier airports.
Derivation
Terminal' here refers to the terminal area — the airspace surrounding a busy airport where arrivals and departures are managed. A STAR is the 'standard' (pre-published, repeatable) way ATC funnels traffic into that area, as opposed to giving every aircraft individual vectors.
Why Pilots Care
It reduces pilot and controller workload, ensures safe separation, and provides predictable descent paths into busy airports.
Intuition Check
STAR does not mean a visible star in the sky here. In this context, STAR is an acronym for a published arrival procedure used to bring aircraft into an airport area in an orderly way.
Example Sentence 1
After cruise, the controller cleared us to descend via the KPTIN THREE arrival, so we set the FMS to follow the STAR's altitude and speed restrictions down to the initial approach fix.
Example Sentence 2
We reviewed the STAR plate during descent planning to confirm the expected crossing altitudes.