Kayak Fare Comparison Data API · Live

Pull live Kayak data
in the time it takes
to read this sentence.

Fares compared across airlines and OTAs, price-forecast buy/wait predictions, and Hacker Fares combined one-way tickets — structured and delivered as clean JSON or CSV. No proxies to manage, no CAPTCHAs to solve, no HTML to parse.

See a Live Response

Price Forecast buy-now-or-wait predictions

<3s avg. response time

99.9% uptime SLA

50M+ requests / month served

GET /v1/kayak/flights

LIVE

// streaming a live fare comparison pull...

Why Choose Our Kayak API

Kayak doesn't just show you today's fare — it tells you whether tomorrow's will be cheaper.

Kayak's price-forecast engine predicts whether a fare is likely to rise or fall, and its Hacker Fares feature combines two different one-way tickets from separate airlines into a cheaper "roundtrip" than any single carrier offers. Our infrastructure resolves both as structured fields, not something buried in a UI badge.

01

Zero blocking, zero maintenance

We run rotating residential IPs, headless rendering, and CAPTCHA-solving behind every request. When Kayak changes its layout, we patch our parsers — your integration never breaks.

02

Price forecast extraction

Every flight response can include a buy-now-or-wait recommendation with a confidence score and predicted price range.

03

Hacker Fares detection

We identify combined one-way ticket pairings from different airlines and return the savings versus a standard roundtrip.

04

Built for scale from day one

From a 100-route test batch to full route monitoring across global markets, the same endpoint scales with you.

Kayak API Features

Everything you need to keep Kayak data flowing.

⚡

Real-time extraction

Trigger an on-demand pull for any route, hotel, or car search and get a fresh response — not a stale cache.

🧩

Custom field selection

Request only the fields you need — fare, forecast, hacker fare — to cut payload size and parsing time.

🔮

Price forecast resolution

Pull buy/wait recommendations with confidence scores for a given route and date.

🧩

Hacker Fares combination extraction

Return combined one-way ticket pairings and their savings versus standard roundtrip fares.

🗺️

Flexible/explore search

Pull fares across multiple destinations for a fixed budget and flexible date range.

📊

Historical fare tracking

Store and query fare history per route to power price-alert and demand-forecasting tools.

What Data Can You Access?

Every field a search result shows — forecast and Hacker Fares detail included.

FlightsFare by sellerCompared price across multiple booking sources

FlightsSeat availability & classEconomy, premium economy, business seats left

FlightsLayover & durationStops, layover time, total journey duration

ForecastBuy/wait recommendationPredicted trend with confidence score

ForecastPredicted price rangeExpected fare range over the forecast window

Hacker FaresCombined one-way pairingTwo airlines combined into one lower-cost trip

Hacker FaresSavings vs. standard roundtripDifference versus single-carrier roundtrip fare

HotelsRoom price & typePer-night price by room category

CarsRental price & vehicle classDaily rate by vehicle category

ExploreDestination-by-budget resultsMatching destinations within a fixed budget

ReviewsGuest & traveler reviewsText, rating, verified-booking badge, date

AlertsFare-drop alert historyTracked price changes for a saved route

Supported Kayak Verticals

Flights, hotels, cars, and flexible/explore search — one integration.

Switch the vertical parameter to pull fares and availability from a specific travel product with the same consistent response shape.

✈️

Flights

Fares compared across multiple airlines and OTAs.

🏨

Hotels

Room pricing and availability across properties.

🚗

Cars

Rental pricing by location and vehicle class.

🗺️

Explore

Flexible destination search by budget and date range.

CoverageGlobalCoverage across major international routes

MetasearchMulti-sellerFares compared across booking sources per route

FreshnessReal-timeFare and availability checked on every request

Kayak API Endpoints

A small set of endpoints that cover the whole search lifecycle.

Method	Endpoint	Description	Typical use
GET	/v1/kayak/flights	Flight fare comparison by route & date	Multi-seller fare monitoring
GET	/v1/kayak/hotels	Hotel search results & room pricing by city	Rate monitoring
GET	/v1/kayak/cars	Car rental pricing by location & vehicle class	Rental rate monitoring
GET	/v1/kayak/price-forecast	Buy/wait recommendation for a route & date	Fare-trend prediction
GET	/v1/kayak/hacker-fares	Combined one-way ticket pairings & savings	Hidden-fare discovery
GET	/v1/kayak/explore	Destinations matching a budget & flexible dates	Flexible-trip planning
POST	/v1/kayak/bulk	Submit up to 10,000 route/hotel IDs per batch job	Portfolio-wide monitoring

Live API Response Example

This is exactly what comes back. No extra parsing needed.

Popular Kayak API Use Cases

Built for the teams that live and die by Kayak data.

📈

Fare comparison monitoring

Track live fares across multiple sellers for the same route.

🔍

Global travel market research

Analyze route demand and pricing trends across international markets.

🛡️

Rate-parity tracking

Track where and at what price your airline or hotel inventory appears across sellers.

💬

Review & sentiment mining

Pull traveler reviews to track satisfaction trends by route and property.

🔮

Fare-forecast accuracy research

Study how well buy/wait predictions track actual future fares.

🧩

Hacker Fares savings analysis

Quantify how often and by how much combined one-way tickets beat roundtrip fares.

🏆

Competitive benchmarking

Track fares and rates against other metasearch and OTA platforms.

🧭

ML training data

Generate labeled fare, forecast, and availability datasets for pricing models.

How the Kayak API Works

From API key to structured data in five steps.

1

Get your API key

Sign up and generate a key from your dashboard in under two minutes.

2

Choose an endpoint

Pick /flights, /price-forecast, /hacker-fares or /explore depending on what you need.

3

Send the request

Call the endpoint with a route, city, or budget and date range.

4

We handle the hard part

Proxies, headless rendering, CAPTCHA-solving, and parsing all happen behind the scenes.

5

Receive structured data

Get clean JSON or CSV back in seconds, ready to drop into your pipeline.

Developer-Friendly Integration

Built by people who read the docs too.

One consistent JSON schema across every vertical and every endpoint. No SDK lock-in — plain REST calls work from any language or platform.

→

Predictable REST design

Standard HTTP verbs, query params, and status codes — nothing proprietary to learn.

→

JSON, CSV, or webhook delivery

Get results inline, as a downloadable file, or pushed to your endpoint when a batch job finishes.

→

Sandbox & test keys

Free sandbox environment with sample routes so you can build before you pay.

→

Postman collection & SDK snippets

Import a ready-made collection or copy request snippets for Python, Node.js, and cURL.

Quickstart

API Performance & Reliability

Numbers we publish because we track them daily.

99.9%

Uptime SLA

<3s

Avg. response time

99.3%

Successful extraction rate

10K+

Concurrent requests supported

Security & Compliance

Compliant by design, not as an afterthought.

🔒

Encrypted in transit

All requests and responses travel over TLS 1.2+. API keys can be scoped and rotated anytime.

⚖️

GDPR, CCPA & global alignment

Our extraction workflows are built around GDPR, CCPA, and other regional data protection guidelines.

🌐

Public-data-only policy

We collect only publicly accessible fare and listing data — never login-gated booking or payment information.

✓ISO 9001:2015 Certified ✓ISO/IEC 27001:2013 Certified ✓IAF Multilateral Recognition ✓GDPR-aligned workflows

API Documentation & Resources

Everything to go from key to production.

Guide

Quickstart Guide

Get your first API response back in under five minutes.

Read guide →

Reference

Full API Reference

Every endpoint, parameter, and response field documented in detail.

View reference →

Tool

Postman Collection

Import ready-made requests for every Kayak API endpoint.

Download →

Code

SDKs & Code Samples

Python, Node.js, PHP, and Ruby snippets for every use case.

Browse samples →

Frequently Asked Questions

Still deciding? Here's what most teams ask first.

We collect only publicly accessible fare and listing data using automated tools, following publicly available web-data guidelines. We recommend reviewing your own use case with legal counsel, especially for redistribution.

Every request to /flights, /hotels, and /cars triggers a live pull — you're not reading from a stale cache. Bulk jobs complete within minutes depending on batch size.

Yes — the /price-forecast endpoint returns Kayak's predicted fare trend with a confidence score, based on its own forecasting model.

Hacker Fares combine two one-way tickets from different airlines into a cheaper "roundtrip" than any single carrier offers. The /hacker-fares endpoint returns these combinations along with the savings versus a standard roundtrip.

Our infrastructure retries automatically across a rotating proxy pool. You're only billed for successfully returned responses.

Yes, every account starts with a free sandbox key and sample credits so you can test all endpoints before committing to a plan.

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Pull live Kayak data
in the time it takes
to read this sentence.