How to Predict Flight Delays with an API

In this article, we will talk about how to predict flight delays with an API and the solutions Aviation Edge APIs offer to achieve this. All the information you are looking for to get started is in one place!

Predicting flight delay for the future depends on the average historical delay rates. Aviation Edge Flight Delay API provides delay data on a historical date or a date range and allows filtering this data based on many factors such as the airline, flight number, airport, flight status, and more. This allows you to collect the data based on an airline, a specific flight, or an airport and determine averages and predictions for market analysis.

The Flight Delay API has global coverage for airports with the exception of private and military airfields and some airports with very little traffic (for example 3-5 flights daily). Every flight in the output has delay data and if the flight was not delayed, the value is “null”. Delay values are in minutes.

How to predict flight delays with an API depends on how you make use of the flight delay data the API returns. The best way would be to request your target, (for example, all times flight “XY1234” of Airline X operated between 2 dates) and divide the total delay amount by the total number of operations. This way, you would get the average delay rate of this flight. You could then compare this data to other airlines’ flights on the same route and see which airline has fewer or more delays which is pretty useful data for market and competition analysis.


The API can return one airport’s schedule at a time and covers the complete schedule of the requested date in one API call. That’s one of the main advantages of the Aviation Edge Flight Delay API. The API consumes only 1 call without matter the number of flights in the response. Even if there are 5 or 2000 flights in the output, both count as 1 call so you make the best out of your API plan!

Feel free to visit the documentation or the GitHub repo for full input, output, and filter information!

Flight Delay Data Sounds Good! – What About Cancelled Flights?

The Flight Delay API also includes the latest recorded flight status for each flight in the response. This means, if a flight was canceled on the given date, the status will appear as “cancelled”. It is possible to filter flights based on the flight status, so with the right parameters in the input, the API can return you:

  • How many flights of an airport were canceled on a given date or date range
  • All canceled flights of a certain airline
  • How many times a specific flight (such as “AB1234”) was cancelled within a date range

which is the necessary data to predict average cancellation rates, just like average delays.

Flight Delay Prediction API – Can the API Predict Future Delays?

The short answer to this would be “not directly”.

However, the Flight Delay Prediction API makes it very easy to predict the future average delay of an airline, a specific route, or all flights of an airport within a certain period in the past – let’s say 1 year backward from the current day. Simply request the flights via the API on the targeted period and analyze how many times they operated and how many times of these were they delayed, and of course, for how long. This will give you a pretty clear understanding of the average delay rates from the current day forward and answer “how to predict flight delays with an API”.

You can always expand the data as the data expands over time too and build a more and more solid average delay rate for future flight delay prediction.


The date range you can request in 1 API call is normally 30 days at the most, but this can be shorter (down to 3-5 days) if the airport you requested is a busy one with higher traffic, and therefore the data the Flight Delay Prediction API is supposed to return.

In these cases, you may simply make multiple API calls covering shorter periods of time to complete your range.

Start Getting Flight Delay Data in a Minute!

“The flight delay data sounds good, but I want to test it first.” We’ve got you covered! Access to the Flight Delay API comes with an API subscription. Simply create an API subscription below in a minute and get your API key in your email. The first month of the subscription comes at an insanely reduced rate of $7 for 30000 API calls you can use in a month, so you may test the data fully with complete Premium features. Upgrade, downgrade or cancel your plan anytime without commitments, so nothing to lose!

Test the data

Get your API key in a minute with discounted rates for testing!

Got any questions? Contact us!

Related APIs

Flight Tracker API

Aviation Edge Flight Tracker API provides detailed data on live, airborne flights. The data is aggregated from…

Flight Schedules API

The Schedules API service provides the flight schedules and timetables of all airports and airlines around the world…

Airline Routes API

The Airline Routes API provides the data about the routes between all the airports an airline operates on. The service…

Flight Delay API

The Flight Delay API service provides historical flight schedule and timetables data of all airports and airlines around the world. …

Aviation Database

Our databases are categorized as airport database, aircraft database, airline database, city database, country database, aviation taxes… 

Get the Free API now!

Get our free API here or by clicking the button below. Fill in the basic form and test the power of our API with the free version. Consult our Premium page for our offers.