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API referenceQuickstart guide
const params = new URLSearchParams({
  DepartureDateTime: "2025-05-01",
  ArrivalDateTime: "2025-05-01",
  DepartureAirport: "JFK",
  ArrivalAirport: "LHR",
  CodeType: "IATA,ICAO",
  version: "v2"
});

const response = await fetch(
  `https://api.oag.com/flight-instances/?${params}`,
  {
    headers: {
      "Subscription-Key": "YOUR_SUBSCRIPTION_KEY"
    }
  }
);

3,600+

Airports covered

6,000+

Status updates per minute

900+

Airlines covered

400,000+

Daily schedule changes

API Coverage

Comprehensive aviation data endpoints

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What's new

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10 Jun 2026

Terminal and Intermediate Airport Fields Now Available in Connections API

New

Three new fields are now available within each leg object in the Connections API: DepartureTerminal — code of the terminal at which the flight departs at the departure airport ArrivalTerminal — code of the terminal at which the flight arrives at the arrival airport IntermediateAirportsIata — IATA codes of airports where the flight makes intermediate stops, excluding departure and arrival airports These fields are available on both legs of a connection and apply to stopping and non-stopping flights alike. No changes to existing fields.

16 Apr 2026

ServiceType Filter Now Supports Filtering By Individual IATA Service Type Codes

New

The capabilities of the ServiceType filter has been expanded and is now available for Flight Info API. In addition to previously supported filtering by high level group names "Passenger" and "Cargo", more granular filtering is now also supported by accepting individual IATA service type codes (e.g. J, G, U). No changes to the response schema — this is a data filtering improvement.

12 Mar 2026

HTTP Push Delivery Method is available in FI Alerts

Improvement

Flight Info Alerts now supports HTTP Push as an alternative delivery method alongside Azure Event Hub. Instead of connecting to an Event Hub to pull events, OAG pushes flight schedule and status change events directly to your HTTPS endpoint via POST requests. You can find more information about HTTP Push here.

Documentation

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