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Google API: Get cheapest flight dates in a month

Finds the lowest Google Flights fare for each departure date in a month between two places, for one-way trips or a fixed trip length, with the cheapest option and any price insight shown.

google.com (opens in a new tab)Version 1ReadNo sign-inVerified Nov 2, 2026

Unofficial. Not affiliated with or endorsed by Google.

Inputs

Values from the run on Oct 31, 2026, shown under Output.

Cabin optionalcabin

Travel cabin, such as business.

economy (default)

One of economy, premium_economy, business, first.

Month, requiredmonth

Departure month in YYYY-MM, such as 2026-11.

2026-11

Adults optionaladults

Number of adults, such as 2.

1 (default)

Whole number from 1 to 9.

Origin, requiredorigin

Departure city or airport, such as New York or JFK.

New York

Currency optionalcurrency

Three-letter currency code, such as USD.

USD (default)

Destination, requireddestination

Arrival city or airport, such as London or BCN.

London

Trip Length Days optionaltrip_length_days

Days between departure and return, such as 7. Omit for one-way.

7

Whole number 1 or more.

Output

From a run on Oct 31, 2026, shortened for this page.
{  "dates": [    {      "currency": "USD",      "return_date": "2026-11-08",      "lowest_price": 645,      "departure_date": "2026-11-01",      "google_flights_link": "https://www.google.com/travel/flights/search?tfs=CBwQAhopEgoyMDI2LTExLTAxag0IAxIJL20vMDJfMjg2cgwIAxIIL20vMDRqcGwaKRIKMjAyNi0xMS0wOGoMCAMSCC9tLzA0anBscg0IAxIJL20vMDJfMjg2QAFIAXABggELCP___________wGYAQE&hl=en&curr=USD"    },    {      "currency": "USD",      "return_date": "2026-11-09",      "lowest_price": 687,      "departure_date": "2026-11-02",      "google_flights_link": "https://www.google.com/travel/flights/search?tfs=CBwQAhopEgoyMDI2LTExLTAyag0IAxIJL20vMDJfMjg2cgwIAxIIL20vMDRqcGwaKRIKMjAyNi0xMS0wOWoMCAMSCC9tLzA0anBscg0IAxIJL20vMDJfMjg2QAFIAXABggELCP___________wGYAQE&hl=en&curr=USD"    },    {      "currency": "USD",      "return_date": "2026-11-10",      "lowest_price": 476,      "departure_date": "2026-11-03",      "google_flights_link": "https://www.google.com/travel/flights/search?tfs=CBwQAhopEgoyMDI2LTExLTAzag0IAxIJL20vMDJfMjg2cgwIAxIIL20vMDRqcGwaKRIKMjAyNi0xMS0xMGoMCAMSCC9tLzA0anBscg0IAxIJL20vMDJfMjg2QAFIAXABggELCP___________wGYAQE&hl=en&curr=USD"    }  ],  "price_insight": "Prices are currently typical",  "cheapest_option": {    "currency": "USD",    "return_date": "2026-11-12",    "lowest_price": 428,    "departure_date": "2026-11-05",    "google_flights_link": "https://www.google.com/travel/flights/search?tfs=CBwQAhopEgoyMDI2LTExLTA1ag0IAxIJL20vMDJfMjg2cgwIAxIIL20vMDRqcGwaKRIKMjAyNi0xMS0xMmoMCAMSCC9tLzA0anBscg0IAxIJL20vMDJfMjg2QAFIAXABggELCP___________wGYAQE&hl=en&curr=USD"  },  "google_flights_link": "https://www.google.com/travel/flights/search?tfs=CBwQAhopEgoyMDI2LTExLTA1ag0IAxIJL20vMDJfMjg2cgwIAxIIL20vMDRqcGwaKRIKMjAyNi0xMS0xMmoMCAMSCC9tLzA0anBscg0IAxIJL20vMDJfMjg2QAFIAXABggELCP___________wGYAQE&hl=en&curr=USD"}
Price
1 credit per completed run (1¢ with pay as you go); failed runs are free.
Method
google.com/get_cheapest_dates
Returns
dates with lowest prices and links, cheapest option, price insight, Google Flights link

Use it from your agent

Give your agent this line. It reads SKILL.md, gets a Fous API key and connects the Fous MCP server. Its run then takes the method google.com/get_cheapest_dates with the inputs above.

Ask your agent

  • What's the cheapest day to fly one-way from Chicago to Denver in March 2026?
  • Show me the lowest Google Flights fares for each departure date in October 2026 from SFO to Tokyo, round trip for 10 days, 2 adults.
  • I want to fly business class from London to Dubai sometime in December 2026 for a one-week trip — which departure dates are cheapest? Prices in GBP please.
  • Find the cheapest dates in July 2026 for a one-way flight from Toronto to Mexico City, and tell me if prices are currently low or high.
  • Using Google, check day-by-day fares from Sydney to Bali for a 5-day trip departing in May 2026, premium economy, in AUD.
  • Finds Google Flights options for a route and date with prices, local times, stops and emissions. Round-trip searches list outbound choices with their displayed round-trip fares.

    google.com/search_flights
  • Lists cheap round-trip destinations from a city on Google Travel Explore, sorted by fare, optionally within a region, travel month, trip length and nonstop only. Links search Google Flights for the shown dates.

    google.com/list_cheap_destinations
  • Finds places to stay in a city or area for given dates on Google Hotels, with nightly and total prices, hotel class, guest ratings, amenities, address and cheapest booking site. Optional filters for price, stars and rating; vacation rentals are left out. Prices and availability can change.

    google.com/search_hotels
  • Gets up to three Google Maps routes between two places, with distances, travel times and step-by-step directions.

    google.com/get_directions
  • Finds a hotel on Google Hotels by name and city and returns its guest reviews in the chosen order, its Google rating and review count, and topic ratings averaged from the returned reviews that rate each topic.

    google.com/get_hotel_reviews
  • Finds a verified advertiser in the Google Ads Transparency Center by company name or website domain and returns its Google ads with dates, regions, previews and ad pages. Counts may be approximate; regions and media previews are read for the first 40 ads.

    adstransparency.google.com/get_company_ads
  • Searches Google Books by words, author, subject or ISBN, with language, free-ebook and newest-first options. Ratings counts are not shown by the public book feed; newest sorts the available matches by publication date.

    books.google.com/search_books
  • Compares Google Trends search interest for one to five terms over a time range, with average scores and a dated timeline. Scores are relative within the comparison.

    trends.google.com/get_interest_over_time