Southwest Airlines Flight API

The Southwest Airlines internal flight booking API powers the southwest.com website for searching and booking flights. It provides flight availability, pricing, schedules, and air booking shopping capabilities. Third-party flight data aggregators also provide API access to Southwest flight schedules and status information.

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools

Call it yourself

curl for this page
This API
curl "https://apis.io/api/v1/apis/southwest-flight-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

A second provider on the same verified email joins the account you already have.

API entry from apis.yml

apis.yml Raw ↑
aid: southwest-airlines:southwest-flight-api
name: Southwest Airlines Flight API
description: The Southwest Airlines internal flight booking API powers the southwest.com website for searching
  and booking flights. It provides flight availability, pricing, schedules, and air booking shopping capabilities.
  Third-party flight data aggregators also provide API access to Southwest flight schedules and status
  information.
humanURL: https://www.southwest.com/
baseURL: https://www.southwest.com/api
tags:
- Airlines
- Flight Booking
- Flight Search
- Travel
properties:
- type: Website
  url: https://www.southwest.com/
- type: Documentation
  url: https://www.southwest.com/
- type: JSONSchema
  url: https://raw.githubusercontent.com/api-evangelist/southwest-airlines/refs/heads/main/json-schema/southwest-airlines-flight-schema.json
- type: JSONSchema
  url: https://raw.githubusercontent.com/api-evangelist/southwest-airlines/refs/heads/main/json-schema/southwest-airlines-reservation-schema.json
- url: graphql/southwest-airlines-graphql.md
  type: GraphQL