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Google Flights

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Arcade OptimizedBYOCPro

Arcade.dev LLM tools for getting flights via Google Flights

Author:Arcade
Version:4.1.1
Auth:No authentication required
4tools
3require secrets

Google Flights Toolkit

Arcade's Google Flights toolkit lets LLMs search and resolve flight itineraries via the SerpApi Google Flights endpoint, returning structured results for one-way, round-trip, and multi-city travel.

Capabilities

  • Airport lookup: Resolve city names, country names, or airport names to IATA codes, including metropolitan codes (NYC, LON, TYO) that match any airport in a metro area.
  • One-way & round-trip search: Search for itineraries in a single call; round-trip fares are priced independently and should never be approximated by summing two one-way searches.
  • Multi-city search: Query open-jaw or multi-leg itineraries as a bundle, which is typically cheaper than equivalent one-way searches summed.
  • Booking option resolution: Convert a booking_token from any search result to a list of airlines and OTAs selling that specific itinerary, with optional POST data for backend vendor hand-offs.
  • Direct booking links: Every search result includes a google_flights_url that opens the pre-selected itinerary on Google Flights, eliminating the need for a separate lookup step.

Secrets

SERP_API_KEY — An API key issued by SerpApi, the service that proxies Google Flights data. To obtain one: create an account at serpapi.com, then retrieve your private API key from the SerpApi dashboard. Free-tier accounts include a limited monthly search quota; paid plans are required for higher volume. The key authenticates every request made by this toolkit.

For configuring secrets in Arcade, see the Arcade secrets docs or manage them directly at api.arcade.dev/dashboard/auth/secrets.

Available tools(4)

4 of 4 tools
Operations
Behavior
Tool nameDescriptionSecrets
Resolve a ``booking_token`` to the airlines and OTAs selling that itinerary. Pass a ``booking_token`` from a one-way, round-trip, or multi-city flight search result to get the vendors selling that specific flight. The token encodes the route, dates, cabin class, and passenger counts (every segment for multi-city), so there are no ``travel_class``, ``num_adults``, or ``num_children`` parameters; supplying a cabin or party size would silently disagree with the itinerary the token was issued for. Leave ``include_booking_post_data`` off (the default) when an LLM is comparing prices; turn it on only when a backend needs to rebuild the vendor hand-off, since the POST body is multiple kilobytes per option.
1
Find IATA airport codes for a city, country, or airport name. Metropolitan codes (NYC, LON, TYO, PAR, ...) are accepted as a ``departure_airport_code`` or ``arrival_airport_code`` in flight searches and mean "any airport in this city".
Search Google Flights for one-way or round-trip itineraries. For a trip where the traveler returns to their origin, issue a single call with both ``outbound_date`` and ``return_date`` set. Do NOT issue two separate one-way searches in opposite directions and sum the prices: airlines price round-trip fares independently from one-way fares, so the sum of two cheapest one-ways is rarely equal to the cheapest round-trip and is typically more expensive. Each returned itinerary carries a ``google_flights_url`` that opens that specific pre-selected flight on Google Flights, so you can hand the user a booking link straight from these results without a separate booking-options lookup.
1
Search Google Flights for a multi-city (open-jaw) itinerary. Use this for trips that are neither a simple one-way nor a round-trip (e.g. an open-jaw three-leg trip that ends back at the origin). The open-jaw bundle is typically cheaper than the equivalent set of one-way searches summed; never substitute several one-way searches for a single multi-city query. Each returned itinerary carries a ``google_flights_url`` that opens that specific pre-selected itinerary on Google Flights, so you can hand the user a booking link straight from these results without a separate booking-options lookup.
1
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