Definition
A pre-published instrument flight procedure that takes an aircraft from the en route phase of flight to a fix or point from which an instrument approach can begin. A STAR is depicted on a chart and consists of a defined sequence of waypoints, courses, altitudes, and often speed restrictions, designed to organize the flow of arriving traffic into busy terminal areas.
Plain English
A standard, published path that air traffic control uses to bring arriving airplanes from cruise down toward the airport in an orderly way. Instead of giving each pilot a long list of headings and altitudes, controllers can just say 'fly this named arrival,' and the pilot follows the route already printed on the chart.
Context Anchor
You will see STARs during IFR flight planning, in ATC clearances, and when setting up the arrival portion of an instrument flight.
Derivation
Terminal' here refers to the terminal area — the airspace surrounding a busy airport where arrivals and departures are concentrated. 'Arrival route' is just the path used for arriving. 'Standard' means it is pre-published and the same every time, so pilots and controllers don't have to build it from scratch.
Why Pilots Care
STARs help manage high volumes of arriving traffic, reduce controller workload, and ensure predictable paths for safe separation.
Intuition Check
Do not think of a STAR as just a suggested path. If ATC clears you for a STAR, it becomes part of the route you are expected to fly unless ATC changes it.
Example Sentence 1
Center cleared us to descend via the BRUNO TWO ARRIVAL, so we followed the published altitudes and crossing restrictions on the STAR all the way to the initial approach fix.
Example Sentence 2
ATC cleared the aircraft for the arrival via the RNAV STAR to the airport.