What does "ETD" represent in aviation?

In aviation, "ETD" stands for Estimated Time of Departure. This term is widely used in the industry to refer to the timeframe when an aircraft is scheduled to leave the departure gate and take off. It is important for both passengers and crew members, as it helps them plan their time around flight schedules.

An accurate ETD is crucial for effective communication between airlines, airports, and passengers, as it ensures that everyone is aligned regarding the timing of a flight. This information can also impact connecting flights, ground transportation, and other logistics associated with air travel.

The other terms listed do not relate specifically to a scheduled departure time for a flight. Expected time of disembarkation refers to when passengers are anticipated to leave the aircraft, estimated time of descent addresses when the plane will begin its descent toward the destination, and expected time of delivery can pertain to cargo or packages rather than flight operations.