Definition
A visual maneuver flown at the end of an instrument approach to align the aircraft with a runway that is not aligned with, or not suitable to land straight-in from, the final approach course. The pilot maneuvers the aircraft visually within a defined protected area around the airport, at or above the published circling minimum descent altitude, until in a position to descend and land on the chosen runway.
Plain English
After flying an instrument approach, you don't land straight ahead — instead you fly a visual loop around the airport at a safe minimum altitude until you're lined up with the runway you actually want, then descend and land.
Context Anchor
Seen in instrument approach procedures when the approach does not line up well with the runway to be used, or when wind or traffic makes another runway the better choice.
Derivation
Circling' comes from flying a curved path — essentially a partial circle — around the airport rather than a straight-in approach. The word captures exactly what the pilot does: circles the field visually before lining up to land.
Why Pilots Care
Circling approaches are statistically among the higher-risk maneuvers in instrument flying. They're flown low, slow, close to the ground, often in marginal weather, and require the pilot to keep the airport in sight while maneuvering. Knowing the protected circling area, the minimums, and the missed approach procedure is essential for safety.
Intuition Check
Do not read “circling” as “fly a full circle.” In this context, it means visual maneuvering near the airport after an instrument approach to get aligned for landing.
Example Sentence 1
Because the wind favored Runway 27 but the only available approach was the ILS to Runway 9, the pilot briefed a circling to land at the published circling minimums.
Example Sentence 2
The circling to land procedure allowed the aircraft to reach the runway environment while remaining clear of terrain on the east side of the field.