Definition
A standard terminal arrival route (STAR) is a published instrument flight rules (IFR) arrival procedure that provides a pre-planned route, with associated waypoints, altitudes, and speed restrictions, from the en route structure to a fix from which an approach to the destination airport can begin.
Plain English
A STAR is a printed flight path that guides arriving aircraft from cruise down toward the airport, using set waypoints and altitudes so pilots and controllers follow the same arrival pattern every time.
Context Anchor
Seen on instrument arrival charts, in flight planning, and in controller clearances when approaching a busy airport.
Derivation
The word 'terminal' comes from the Latin 'terminus' meaning 'end' or 'boundary.' In aviation, the terminal area is the airspace at the end of the en route portion of a flight, near the destination airport. A STAR is the standard route used to transition into that terminal area.
Why Pilots Care
Following the assigned route keeps traffic separated, reduces controller and pilot workload, and helps maintain situational awareness during descent.
Intuition Check
Do not read terminal as the airport building, and do not treat route as a loose suggestion. Here, terminal means the controlled airport area at the arrival end of the flight, and the route is a published path to follow when assigned.
Example Sentence 1
ATC cleared us to descend via the EAGUL5 arrival, so we set the STAR up in the FMS and verified each crossing altitude.
Example Sentence 2
The pilot reviewed the standard terminal arrival route to confirm altitudes and speeds before starting the descent.