Southwest Airlines

Southwest Airlines is one of the world's most profitable airlines and the largest domestic air carrier in the United States by number of passengers. The company provides scheduled air transportation in the United States and near-international markets, known for its low fares, no baggage fees policy, and customer service. Southwest Airlines is a Fortune 500 company headquartered in Dallas, Texas.

Southwest Airlines is listed with 3 APIs on the APIs.io network. Tagged areas include Fortune 500, Airlines, Aviation, and Travel.

The Southwest Airlines catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

🌐 Visit website 📡 Profile data on GitHub

20.3/100 emerging ▬ flat Agent 1/100 human only Front door AI 1/6 silent Heartbeat 60/100 alive Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessEnterprise

3 APIs

Fortune 500 Airlines Aviation Travel

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 20.3/100 · emerging

Contract Quality 5.7 / 21

Developer Ergonomics 1.6 / 17

Access Clarity 0.7 / 17

Operational Transparency 2.1 / 11

Contract Governance 2.4 / 10

Discoverability 4.6 / 9

Regulatory Posture 2.5 / 15

Agent readiness — 1/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document Ask about this →
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author Ask about this →
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey) Ask about this →
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented) Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →

12 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 4.3 — up to +19.1 composite points Ask about this →
Contract Quality scores 26.7 — up to +18.3 composite points Ask about this →
Developer Ergonomics scores 9.5 — up to +18.1 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/southwest-airlines/apis.yml: open an issue on github.com/api-evangelist/southwest-airlines to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 3

Individual APIs this provider publishes, each with its own machine-readable definition.

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 a...

Southwest Airlines Rapid Rewards API

The Rapid Rewards loyalty program API enables management of points balances, redemption, and tier status for Southwest Airlines frequent fliers.

Southwest Airlines In-Flight Network API

The Southwest Airlines in-flight network provides a JSON API available at getconnected.southwestwifi.com/current.json while onboard the aircraft. It delivers real-time flight in...

Southwest Airlines API pricing

Not yet checked against Southwest Airlines's own pricing page. Compiled by API Evangelist on 2026-05-05 from www.southwest.com/; confirm before you rely on a figure.

Plan	Price
Contact Sales enterprise	—

Plan details, limits and sources →

Rate limits

Partner / Contract-Bound Limits: see partnership agreement varies

Compiled by API Evangelist, not yet checked against Southwest Airlines's documentation. Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

Southwest Airlines Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Southwest Airlines Rate Limits

1 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Southwest Airlines Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Southwest Airlines Context

8 classes · 16 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Southwest Airlines — jsonschema rules

5 rules · 3 warn-severity 2 info-severity

SPECTRAL

JSON Schema 2

Standalone JSON Schema definitions for this provider's data models.

Southwest Airlines Flight

12 properties

JSON SCHEMA

Southwest Airlines Reservation

7 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Southwest Airlines Flight Structure

0 properties

JSON STRUCTURE

Examples 2

Example request and response payloads for these APIs.

Southwest Airlines Flight Example

10 fields

EXAMPLE

Southwest Airlines Reservation Example

7 fields

EXAMPLE

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Southwest Airlines Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Southwest Airlines Vulnerability Disclosure

security.txt · contact published

SECURITY

Press 5

Recent news and press coverage referencing this provider.

Southwest Airlines has banned robots from flights, a policy ...

Southwest Airlines Co. News and Press Releases

Southwest Airlines recently changed their baggage policy ...

Southwest Airlines Transforms Customer Experience with ...

Southwest uses AI to modernize management software

Resources

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

JSONLDContext

JSONLDContext

Vocabulary

Vocabulary

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

Website

Website

Investor Relations

Investor Relations

LinkedIn

Other 2

Properties that don't map to a standard resource type

Open Source

Open Source

Source (apis.yml)

aid: southwest-airlines
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: enterprise
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Enterprise
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-13'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/southwest-airlines.png
name: Southwest Airlines
description: Southwest Airlines is one of the world's most profitable airlines and the largest domestic air carrier in the
  United States by number of passengers. The company provides scheduled air transportation in the United States and near-international
  markets, known for its low fares, no baggage fees policy, and customer service. Southwest Airlines is a Fortune 500 company
  headquartered in Dallas, Texas.
url: https://raw.githubusercontent.com/api-evangelist/southwest-airlines/refs/heads/main/apis.yml
created: '2026-03-21'
modified: '2026-05-02'
specificationVersion: '0.23'
tags:
- Fortune 500
- Airlines
- Aviation
- Travel
apis:
- 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
- aid: southwest-airlines:southwest-rapid-rewards-api
  name: Southwest Airlines Rapid Rewards API
  description: The Rapid Rewards loyalty program API enables management of points balances, redemption, and tier status for
    Southwest Airlines frequent fliers.
  humanURL: https://www.southwest.com/rapid-rewards/
  tags:
  - Loyalty
  - Rewards
  - Airlines
  properties:
  - type: Website
    url: https://www.southwest.com/rapid-rewards/
- aid: southwest-airlines:southwest-inflight-api
  name: Southwest Airlines In-Flight Network API
  description: The Southwest Airlines in-flight network provides a JSON API available at getconnected.southwestwifi.com/current.json
    while onboard the aircraft. It delivers real-time flight information including speed, altitude, position, weather, and
    flight status to connected passengers.
  humanURL: https://getconnected.southwestwifi.com/
  baseURL: https://getconnected.southwestwifi.com
  tags:
  - In-Flight
  - Airlines
  - Flight Status
  - Real-Time
  properties:
  - type: Documentation
    url: https://apievangelist.com/2016/10/06/your-southwest-airlines-flight-has-an-api/
common:
- type: Plans
  url: plans/southwest-airlines-plans-pricing.yml
- type: RateLimits
  url: rate-limits/southwest-airlines-rate-limits.yml
- type: FinOps
  url: finops/southwest-airlines-finops.yml
- type: VulnerabilityDisclosure
  url: security/southwest-airlines-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/southwest-airlines-domain-security.yml
- type: Website
  url: https://www.southwest.com
- type: Investor Relations
  url: https://ir.southwest.com/
- type: GitHubOrganization
  url: https://github.com/SouthwestAir
- type: LinkedIn
  url: https://www.linkedin.com/company/southwest-airlines
- type: X
  url: https://twitter.com/SouthwestAir
- type: Open Source
  url: https://github.com/SouthwestAir/.github
- type: JSONLDContext
  url: https://raw.githubusercontent.com/api-evangelist/southwest-airlines/refs/heads/main/json-ld/southwest-airlines-context.jsonld
- type: Vocabulary
  url: https://raw.githubusercontent.com/api-evangelist/southwest-airlines/refs/heads/main/vocabulary/southwest-airlines-vocabulary.yml
maintainers:
- FN: API Evangelist
  email: info@apievangelist.com

Southwest Airlines API — frequently asked questions

Does Southwest Airlines have an API?

Yes. APIs.io lists 3 APIs from Southwest Airlines, including Southwest Airlines Flight API, Southwest Airlines Rapid Rewards API and Southwest Airlines In-Flight Network API.

How much does the Southwest Airlines API cost?

APIs.io lists 1 pricing plan for Southwest Airlines, with each plan's price, limits and inclusions under Pricing on this page.

Is the Southwest Airlines API ready for AI agents?

Southwest Airlines has a Kin Score of 20.3 out of 100 (emerging) and an Agent Readiness score of 0.6 (human-only), scored by API Evangelist on 2026-11-13.

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