Estimated Time of Travel, Meaning, Synonyms, Antonyms, and Use Cases

estimated time of travel

What is the estimated time of travel? A lot of us have booked a flight and sat in the airport wondering how long our flight is going to take before we meet up with our planned schedule or get to see our loved ones.

Here is an insight into the word ”estimated time of travel”, its meaning, synonyms, antonyms, translation, and use cases.


Estimated time of travel (ETT) is the concept of the movement of an aircraft between certain points in relation to time, symmetrical to different points in the atmosphere.

it goes down to cover the flight duration of an aircraft which refers to the amount of time a single flight is scheduled to take from its point of departure to arrival at its destination.

This estimated time also includes the time the aircraft spends taxiing to and from the runway.

ETT can basically start once the ground crew removes the wheel blocks, and it doesn’t stop until the ground crew at the destination airport reapplies the blocks.

It comes in handy for charter operators as they also use the calculations from the estimated time of travel to calculate:

  • Cost of aircraft charter operations
  • Departure and arrival times, and
  • Crewmember wages

Knowing the expected time of travel ahead of a trip helps both the passenger and the operator. The operator benefits from being able to accurately schedule the desired departure time while the passenger benefits from knowing how long they can expect to be in transit.


block time, flight time, flight hours, flying time, time of flight, duration of the flight, during the flight, flight duration, flight duty period, flight season, flight time limitation, flight time limitations, flying lessons, hang time, hours flown
hours of flight time, journey time, of flight time, time up, average flight time, checkout time, duration of flight, entire flight, flight hour, flying hours, hour flight, hours of flight


Factual time, Specific time


Dutch –  geschatte reistijd

Latin – æstimatum tempus itinerantur

French – temps de trajet estimé

Spanish – tiempo estimado de viaje

Use cases

  • The estimated time of travel she gave for her previous flight was not accurate.
  • The pilot said it was easy to find out any flight’s estimated time of travel, plus its current position, altitude, and speed.

Frequently asked question

Before calculating air travel time, you must first calculate the difference in arrival and departure times. For example, if you leave San Francisco at eleven AM GMT and arrive in London at six thirty PM GMT, you would be in the air for seven hours and thirty minutes. The flight time is a simple estimation since it does not account for any wind or severe weather.
What is estimated time of arrival (ETA) and estimated time of departure (ETD) in aviation?
Estimated Time of Arrival is the time within which a specific aircraft reaches its destination. We can also use it as a transport term that determines the remaining time at which some aircraft, cars, vessels, or emergency services will reach their destination In the case of transport, the estimated time of departure provides information on the day on which the aircraft or delivery leaves the previously mentioned seaport or airport.


We can now conclude that the estimated time of travel is the total time from the moment an aircraft first moves to take off until the moment it finally comes to arrival at the end of the flight.

The calculation for ETT is calculated differently in the United States than in other parts of the world. As European regulations define it as the time an aircraft charter is airborne, where taxi time isn’t included.

ETT Explained (Video)



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