When does a flight delay become classified as a Planned/Anticipated Delay?

A flight delay is classified as a Planned/Anticipated Delay when it is known well in advance, specifically 24 hours before departure. This allows both the airline and the passengers to prepare for the delay and make necessary arrangements, such as rebooking, adjusting travel plans, or providing updated information on departure times.

Additionally, this lead time enables airlines to manage operational schedules more efficiently, mitigating the impact of the delay on subsequent flights and overall operations. Recognizing delays at this advanced notice aligns with ICAO's recommendations for enhancing passenger service and ensuring proper communication.

The other choices do not meet the criteria for a Planned/Anticipated Delay as they either specify shorter notice periods or insufficient planning duration, which can lead to confusion and inadequate adjustments for both airlines and passengers.