Definition
Air traffic control service provided by an approach control facility for arriving and departing VFR and IFR aircraft, and on occasion en route aircraft. At some airports not served by an approach control facility, the ARTCC provides limited approach control service.
Plain English
The air traffic control service that handles aircraft as they leave the area around a busy airport after takeoff and as they line up to come back in to land. It is the layer of control between the tower at the airport and the en route controllers who handle high-altitude traffic.
Context Anchor
You encounter this when contacting approach control after departure, before entering a busy airport area, or while being handed off from center or tower.
Derivation
“Approach” comes from older French and Latin roots meaning “to come nearer.” In aviation, it points to the part of flight where an aircraft is coming nearer to an airport, or working in the airspace around one.
Why Pilots Care
Ensures safe separation from other traffic and provides efficient routing to the runway or departure path, reducing pilot workload in busy airspace.
Intuition Check
“Approach” does not mean a general way of doing something here. It means the ATC service connected with aircraft moving into, out of, or around an airport area.
Example Sentence 1
After takeoff, the tower instructed us to contact Approach Control on 124.55 for radar vectors on course.
Example Sentence 2
Approach control service provided traffic advisories and separation for multiple aircraft in the terminal area.