Free Flight Route Data API 2026 — Developer Documentation

Access our flight route data programmatically via our free REST API. No API key required.

Quick Start

Base URL: https://flightroutedata.com/wp-json/flightdata/v1/

Authentication: None required (public API)

Rate Limit: 60 requests per minute

Format: JSON

Endpoints

GET /flightdata/v1/route

Get pricing data for a specific flight route

Parameters: from, to, class

Example:

https://flightroutedata.com/wp-json/flightdata/v1/route?from=new-york&to=london&class=economy

GET /flightdata/v1/routes

List all available flight routes

Parameters: none

Example:

https://flightroutedata.com/wp-json/flightdata/v1/routes

GET /flightdata/v1/cheapest

Cheapest destinations from a given city

Parameters: from, limit

Example:

https://flightroutedata.com/wp-json/flightdata/v1/cheapest?from=london&limit=10

GET /flightdata/v1/calendar

Estimated prices by month for a route

Parameters: from, to

Example:

https://flightroutedata.com/wp-json/flightdata/v1/calendar?from=nyc&to=paris

Response Format

All endpoints return JSON with these common fields:

{
  "source": "https://flightroutedata.com",
  "last_updated": "2026-04-08",
  "disclaimer": "Data estimated from 2026 research."
}

Usage Terms

  • Free to use for personal and commercial projects
  • Attribution required — include a link to https://flightroutedata.com as your data source
  • No warranty — data is provided as-is for reference
  • Rate limit — please limit to 60 requests per minute

Need Help?

Questions about the API? Contact us.

API Version 1.0 | Last updated: April 2026