Kayak

Flight options, hotel rates and rental car offers

Kayak compares flight and hotel prices across booking sites and current rental car offers; hotel rates assume two adults per room and cover public location pages, while prices and availability can change at booking.

Search flights

Compare Kayak flight options by route and date, including itineraries, lowest listed USD fare per traveler, booking site, and flight details. Fares and availability can change at booking.

Your information

SortOptional

Flight order, for example cheapest.

CabinOptional

Cabin class, for example business.

From

Departure city or airport, for example Boston.

Arrival city or airport, for example Lisbon.

Max ResultsOptional

Maximum number of options, for example 10.

Departure Date

Departure date, for example 2026-11-10.

More options

AdultsOptional

Number of adults, for example 2.

Return DateOptional

Return date, for example 2026-11-17. Omit for one-way flights.

Nonstop OnlyOptional

Only nonstop flight options, for example true.

1 credit per completed run

The same inputs also work from your code or an AI assistant. See For developers.

Example results

Flight options

About the Kayak tool

Kayak returns flight fares, sellers, itineraries, and details; Search flights needs an origin, destination, and departure date.

Search hotels returns rates, guest scores, and property details; it needs a location and check-in and check-out dates.

Search rental cars returns offers, prices, and vehicle details; it needs a pick-up location and pick-up and drop-off dates.

Built from kayak.com. Last checked Sep 29, 2026.

Actions

Search flights

1 credit

Compare Kayak flight options by route and date, including itineraries, lowest listed USD fare per traveler, booking site, and flight details. Fares and availability can change at booking.

What you provide

Field	Type	Required	Description
Sort`sort`	Text	Optional	Flight order, for example cheapest.Example: Quickest
Cabin`cabin`	Text	Optional	Cabin class, for example business.Example: Premium economy
Adults`adults`	Number	Optional	Number of adults, for example 2.Example: 2
Origin`origin`	Text	Required	Departure city or airport, for example Boston.Example: Boston
Destination`destination`	Text	Required	Arrival city or airport, for example Lisbon.Example: Lisbon
Max Results`max_results`	Number	Optional	Maximum number of options, for example 10.Example: 50
Return Date`return_date`	Date	Optional	Return date, for example 2026-11-17. Omit for one-way flights.Example: 2026-11-19
Nonstop Only`nonstop_only`	Yes or no	Optional	Only nonstop flight options, for example true.Example: Yes
Departure Date`departure_date`	Date	Required	Departure date, for example 2026-11-10.Example: 2026-11-10

What you get

Field	Type	Description
Flights`flights`	List
Seller`flights[].seller`	Text	Example: Delta
Currency`flights[].currency`	Text	Fare currency, USD.Example: USD
Kayak URL`flights[].kayak_url`	Link	Example: https://www.kayak.com/flights/BOS-LIS/2026-11-10/premium/fac831c2577090fd0b113e…
Return Stops`flights[].return_stops`	Value	Example: 0
Outbound Stops`flights[].outbound_stops`	Number	Example: 0
Return Airlines`flights[].return_airlines`	Value
Outbound Airlines`flights[].outbound_airlines`	List
Return Travel Time`flights[].return_travel_time`	Value	Example: 8 h 05 min
Return Arrival Time`flights[].return_arrival_time`	Text	Local arrival time with timezone offset.Example: 2026-11-19T17:20-05:00
Outbound Travel Time`flights[].outbound_travel_time`	Text	Example: 6 h 20 min
Return Stop Airports`flights[].return_stop_airports`	Value
Outbound Arrival Time`flights[].outbound_arrival_time`	Text	Local arrival time with timezone offset.Example: 2026-11-11T09:00+00:00
Return Departure Time`flights[].return_departure_time`	Text	Local departure time with timezone offset.Example: 2026-11-19T14:15+00:00
Return Flight Numbers`flights[].return_flight_numbers`	Value
Return Origin Airport`flights[].return_origin_airport`	Value	Example: London Heathrow
Outbound Stop Airports`flights[].outbound_stop_airports`	List
Price Per Traveler (USD)`flights[].price_per_traveler_usd`	Number	Lowest listed price per traveler in USD.Example: 1609
Outbound Departure Time`flights[].outbound_departure_time`	Text	Local departure time with timezone offset.Example: 2026-11-10T21:40-05:00
Outbound Flight Numbers`flights[].outbound_flight_numbers`	List
Outbound Origin Airport`flights[].outbound_origin_airport`	Text	Example: Boston Logan Intl
Return Destination Airport`flights[].return_destination_airport`	Value	Example: New York John F Kennedy Intl
Return Origin Airport Code`flights[].return_origin_airport_code`	Value	Example: LHR
Return Travel Time (minutes)`flights[].return_travel_time_minutes`	Value	Example: 485
Outbound Destination Airport`flights[].outbound_destination_airport`	Text	Example: Lisbon Humberto Delgado
Outbound Origin Airport Code`flights[].outbound_origin_airport_code`	Text	Example: BOS
Outbound Travel Time (minutes)`flights[].outbound_travel_time_minutes`	Number	Example: 380
Return Destination Airport Code`flights[].return_destination_airport_code`	Value	Example: JFK
Outbound Destination Airport Code`flights[].outbound_destination_airport_code`	Text	Example: LIS

Example result

For Sort: Quickest, Cabin: Premium economy, Origin: Boston, Destination: Lisbon, Max Results: 50, Departure Date: 2026-11-10

JSON

{
  "flights": [
    {
      "seller": "Delta",
      "currency": "USD",
      "kayak_url": "https://www.kayak.com/flights/BOS-LIS/2026-11-10/premium/fac831c2577090fd0b113e615adf68a83?viewRank=0",
      "return_stops": null,
      "outbound_stops": 0,
      "return_airlines": null,
      "outbound_airlines": [
        "Delta"
      ],
      "return_travel_time": null,
      "return_arrival_time": null,
      "outbound_travel_time": "6 h 20 min",
      "return_stop_airports": null,
      "outbound_arrival_time": "2026-11-11T09:00+00:00",
      "return_departure_time": null,
      "return_flight_numbers": null,
      "return_origin_airport": null,
      "outbound_stop_airports": [],
      "price_per_traveler_usd": 1609,
      "outbound_departure_time": "2026-11-10T21:40-05:00",
      "outbound_flight_numbers": [
        "DL 124"
      ],
      "outbound_origin_airport": "Boston Logan Intl",
      "return_destination_airport": null,
      "return_origin_airport_code": null,
      "return_travel_time_minutes": null,
      "outbound_destination_airport": "Lisbon Humberto Delgado",
      "outbound_origin_airport_code": "BOS",
      "outbound_travel_time_minutes": 380,
      "return_destination_airport_code": null,
      "outbound_destination_airport_code": "LIS"
    }
  ]
}

Search hotels

1 credit

Compare Kayak hotel rates across booking sites for a city or neighborhood and stay dates. Rates assume two adults in one room; stay totals are not shown, and results are limited to hotels on the public location page.

What you provide

Field	Type	Required	Description
Sort`sort`	Text	Optional	Order hotels by recommendation, lowest price, or guest score, for example cheapest.Example: Cheapest
Check in`check_in`	Date	Required	Arrival date, for example 2026-11-10.Example: 2026-11-12
Location`location`	Text	Required	City or area to search, for example Chicago.Example: Seattle
Check Out`check_out`	Date	Required	Departure date, for example 2026-11-12.Example: 2026-11-14
Min Stars`min_stars`	Number	Optional	Minimum hotel class from 1 to 5 stars, for example 4.Example: 3
Max Results`max_results`	Number	Optional	Maximum hotels to return, for example 20.Example: 6

What you get

Field	Type	Description
Hotels`hotels`	List
Name`hotels[].name`	Text	Example: Ballard's sweet suites
Stars`hotels[].stars`	Number	Example: 3
Kayak Link`hotels[].kayak_link`	Link	Example: https://www.kayak.com/Seattle-Hotels-Isla-s-sweet-suite---Micro-Studio---91Walk…
Guest Rating`hotels[].guest_rating`	Number	Guest score out of 10.Example: 8.7
Neighbourhood`hotels[].neighbourhood`	Text	Example: Ballard
Kayak Hotel ID`hotels[].kayak_hotel_id`	Text	Example: 8159812
Lowest Price Site`hotels[].lowest_price_site`	Text	Example: Booking.com
Number of Reviews`hotels[].number_of_reviews`	Number	Example: 23
Guest Rating Label`hotels[].guest_rating_label`	Text	Example: Very good
Total Stay Price (USD)`hotels[].total_stay_price_usd`	Number	Full stay price in USD when shown.
Lowest Nightly Price (USD)`hotels[].lowest_nightly_price_usd`	Number	Lowest available USD price per night.Example: 98

Example result

For Sort: Cheapest, Check in: 2026-11-12, Location: Seattle, Check Out: 2026-11-14, Min Stars: 3, Max Results: 6

JSON

{
  "hotels": [
    {
      "name": "Ballard's sweet suites",
      "stars": 3,
      "kayak_link": "https://www.kayak.com/Seattle-Hotels-Isla-s-sweet-suite---Micro-Studio---91Walkscore.8159812.ksp",
      "guest_rating": 8.7,
      "neighbourhood": "Ballard",
      "kayak_hotel_id": "8159812",
      "lowest_price_site": "Booking.com",
      "number_of_reviews": 23,
      "guest_rating_label": "Very good",
      "total_stay_price_usd": null,
      "lowest_nightly_price_usd": 98
    },
    {
      "name": "Coast Seattle Downtown Hotel By Apa",
      "stars": 4,
      "kayak_link": "https://www.kayak.com/Seattle-Hotels-Coast-Seattle-Downtown-Hotel-By-Apa.1071881958.ksp",
      "guest_rating": 8.2,
      "neighbourhood": "Central Business District",
      "kayak_hotel_id": "1071881958",
      "lowest_price_site": "Booking.com",
      "number_of_reviews": 647,
      "guest_rating_label": "Very good",
      "total_stay_price_usd": null,
      "lowest_nightly_price_usd": 103
    },
    {
      "name": "Best Western Plus Pioneer Square Hotel Downtown",
      "stars": 3,
      "kayak_link": "https://www.kayak.com/Seattle-Hotels-Best-Western-Plus-Pioneer-Square-Hotel-Downtown.28809.ksp",
      "guest_rating": 8.4,
      "neighbourhood": "0.5 mifrom Lumen Field, Seattle, United States",
      "kayak_hotel_id": "28809",
      "lowest_price_site": "Priceline",
      "number_of_reviews": 1716,
      "guest_rating_label": "Very good",
      "total_stay_price_usd": null,
      "lowest_nightly_price_usd": 109
    }
  ]
}

Search rental cars

1 credit

Compare current Kayak rental car offers for a pick-up place and dates, sorted by total price. Times are available on the hour or half hour; prices and availability may change at booking.

What you provide

Field	Type	Required	Description
Car Type`car_type`	Text	Optional	Type of car, e.g. suv.Example: Suv
Max Results`max_results`	Number	Optional	Maximum number of offers, e.g. 20.Example: 5
Pickup Date`pickup_date`	Date	Required	Pick-up date, e.g. 2026-10-21.Example: 2026-10-22
Pickup Time`pickup_time`	Text	Optional	Pick-up time, HH:MM on the hour or half hour, e.g. 10:30.Example: 10:30
Dropoff Date`dropoff_date`	Date	Required	Drop-off date, e.g. 2026-10-24.Example: 2026-10-25
Dropoff Time`dropoff_time`	Text	Optional	Drop-off time, HH:MM on the hour or half hour, e.g. 11:00.Example: 11:00
Pickup Location`pickup_location`	Text	Required	City or airport where you will collect the car, e.g. Miami airport.Example: San Francisco airport
Dropoff Location`dropoff_location`	Text	Optional	City or airport for returning the car; defaults to the pick-up place, e.g. Los Angeles airport.

What you get

Field	Type	Description
Offers`offers`	List
Bags`offers[].bags`	Number	BagsExample: 4
Seats`offers[].seats`	Number	SeatsExample: 5
Car Type`offers[].car_type`	Text	Car classExample: Intermediate SUV
Kayak Link`offers[].kayak_link`	Text	Kayak offer linkExample: https://www.kayak.com/book/car?code=1CDmR01Xd0.DAvHH8nEK9LTYwQ_VUUUMA.4760.a48a…
Booking Site`offers[].booking_site`	Text	Booking providerExample: Europcar
Pickup Point`offers[].pickup_point`	Text	How to collect the carExample: Shuttle
Transmission`offers[].transmission`	Text	TransmissionExample: Automatic
Example Model`offers[].example_model`	Text	Example vehicle modelExample: Kia Sportage or similar
Rental Company`offers[].rental_company`	Text	Rental companyExample: Europcar
Total Price (USD)`offers[].total_price_usd`	Number	Total in USDExample: 143
Price Per Day (USD)`offers[].price_per_day_usd`	Number	Daily price in USDExample: 48

Example result

For Car Type: Suv, Max Results: 5, Pickup Date: 2026-10-22, Pickup Time: 10:30, Dropoff Date: 2026-10-25, Dropoff Time: 11:00, Pickup Location: San Francisco airport

JSON

{
  "offers": [
    {
      "bags": 4,
      "seats": 5,
      "car_type": "Intermediate SUV",
      "kayak_link": "https://www.kayak.com/book/car?code=1CDmR01Xd0.DAvHH8nEK9LTYwQ_VUUUMA.4760.a48ab9d7a26ce98e5b6545ec1b774a76&h=54ce7b20400d&sub=8d6c427a7c962f78078a3d01ca7feabc&viewId=35dca10c-7b55-4a5a-b996-bc10f8c9a…",
      "booking_site": "Europcar",
      "pickup_point": "Shuttle",
      "transmission": "Automatic",
      "example_model": "Kia Sportage or similar",
      "rental_company": "Europcar",
      "total_price_usd": 143,
      "price_per_day_usd": 48
    },
    {
      "bags": 3,
      "seats": 5,
      "car_type": "Compact SUV",
      "kayak_link": "https://www.kayak.com/book/car?code=1CDmR01Xd0.DAvHH8nEK9LTYwQ_VUUUMA.4899.535fd76451d2cecab759060e8e15f861&h=fef322923939&sub=471d72f7eefad476507ce8fed2283e49&viewId=35dca10c-7b55-4a5a-b996-bc10f8c9a…",
      "booking_site": "Europcar",
      "pickup_point": "Shuttle",
      "transmission": "Automatic",
      "example_model": "Jeep Compass or similar",
      "rental_company": "Europcar",
      "total_price_usd": 147,
      "price_per_day_usd": 49
    },
    {
      "bags": 5,
      "seats": 5,
      "car_type": "Standard SUV",
      "kayak_link": "https://www.kayak.com/book/car?code=1CDmR01Xd0.DAvHH8nEK9LTYwQ_VUUUMA.5020.f04e131ce6275c35ec0241110b7485ed&h=85c1733fa3eb&sub=ff32fe8eb378d04987bdce55f56a7557&viewId=35dca10c-7b55-4a5a-b996-bc10f8c9a…",
      "booking_site": "Europcar",
      "pickup_point": "Shuttle",
      "transmission": "Automatic",
      "example_model": "Dodge Journey or similar",
      "rental_company": "Europcar",
      "total_price_usd": 151,
      "price_per_day_usd": 51
    }
  ]
}

For developers

Call it from your code with one request. Change the values in input to run it on new data. To get an API key, open Developers at the bottom of Studio, turn on Developer mode and go to API keys.

cURL

curl 'https://api.fous.com/v1/query' \
  --fail-with-body --silent --show-error --max-time 180 \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H 'Content-Type: application/json' \
  --data-raw '{
  "api": "@kayak",
  "visibility": "public",
  "operation": "search_flights",
  "version": 1,
  "input": {
    "sort": "quickest",
    "cabin": "premium_economy",
    "origin": "Boston",
    "destination": "Lisbon",
    "max_results": 50,
    "departure_date": "2026-11-10"
  },
  "response": {
    "format": "json"
  }
}'

What you can do with it

Compare flight fares and itineraries across booking sites
Find hotel rates and guest scores for a destination
Compare rental car prices for travel dates
Review flight stops, airlines, and travel times
Plan car pick-up and drop-off locations

Questions about Kayak

Can I run it with my own inputs?

Yes. Change the inputs in Studio and press Run, or send new inputs from your code, or ask a connected AI assistant.

Can I call this Kayak tool as an API?

Yes. Send a POST request to /v1/query with your Fous API key and the inputs, and get JSON back.

How much does it cost?

Each completed run costs 1 credit. Failed runs without a completed receipt are free; completed work can remain charged if delivery is interrupted. With pay as you go, a credit costs 1¢. Monthly plans cost less per credit.

Do I need a Kayak account?

No. You only need a Fous account.

How current is the data?

Fous gets the data from kayak.com when you run it. Some results are reused for up to 24 hours, and results that use your account or key are never reused. It was last verified on Sep 29, 2026.

What flight options are available for my route and dates?

Search flights returns itineraries, fares, booking sites, and flight details. Provide an origin, destination, and departure date; add a return date for round trips.

What are the hotel rates for my stay?

Search hotels returns available nightly rates, property details, and guest scores. Provide a location and check-in and check-out dates.

What rental cars can I compare for my dates?

Search rental cars returns offers with total and daily prices, car details, and booking providers. Provide a pick-up location and pick-up and drop-off dates.