Search for flights using Google Flights data via SerpAPI. Returns best_flights and other_flights with full details (price, duration, stops, airline, aircraft, legroom, amenities, carbon emissions) plus price_insights (lowest price, typical range, price history).

Each result includes a booking_token (to get booking links) and for one-way results a departure_token (to get matching return flights for round-trips).

Supports one-way, round-trip, and multi-city. Filters include: nonstop only, max price, cabin class, specific airlines, departure/arrival time windows, layover duration, connecting airport exclusions, and emissions.

After searching one-way outbound flights, use this to get matching return flight options for a selected outbound flight. Pass the departure_token from the outbound search result.

Get booking links and price breakdown for a specific flight. Pass the booking_token from a search_flights or get_return_flights result. Returns booking options from different airlines/OTAs with direct links.

Find airport IATA codes by city, region, country, or airport name. Use this before searching flights to resolve place names to airport codes — especially useful for finding all airports near a city (e.g. 'Nottingham' returns EMA, BHX, MAN, LHR...) or all major airports in a country/region (e.g. 'Argentina' returns EZE, AEP, COR...). Returns IATA code, name, city, country, and any additional cities/regions served.

Discover flight destinations and prices from a departure airport using Google Travel Explore. Ideal for open-ended holiday planning: "Where can I fly from London in June?" or "What's cheap from EMA this summer?".

Returns a list of destinations with flight price, hotel price, best travel dates, flight duration, and stops. Use month + travel_duration for flexible date search, or outbound_date + return_date for specific dates. Filter by interest (beaches, skiing, history, etc.) or region using arrival_area_id.

Also excellent for discovering domestic/internal flights: explore from AEP (Buenos Aires domestic airport) to see all Argentine destinations, or from SCL to see Chilean domestic routes.

Search for flights across a range of dates to find the cheapest day to fly. Returns one result per date sorted by price — ideal for answering "When's the cheapest time to fly to Tokyo in April?".

Uses one API credit per date searched (capped at 30 days). Failures on individual dates are returned as errors rather than failing the whole request.

Find the cheapest departure airport for a trip by searching from all major airports near a location in parallel. Answers "Should I fly from East Midlands, Birmingham, or Manchester to Buenos Aires?".

Uses one API credit per airport searched (default 5, max 10). Results are sorted by cheapest price.

Plan a multi-leg trip by searching each leg in parallel. Ideal for internal/domestic routing within a multi-country holiday: "I'll be in Buenos Aires on Oct 17, want to visit Patagonia on Oct 23, then end in Santiago on Oct 28 — what are the cheapest flights?"

Each stop is resolved to nearby airports automatically (e.g. "Patagonia" → BRC, USH, FTE, PUQ, BBA). Uses 1 API credit per leg (N-1 credits for N stops). Returns the cheapest flight per leg plus up to 3 alternatives so you can compare specific airport options (e.g. cheapest into Patagonia might be BRC, but you can see FTE/El Calafate options too).

Plan an open-jaw trip visiting two destinations — fly into one country and out of another without backtracking. Ideal for "Nottingham to Argentina and Chile in October: what's the cheapest combination?".

Searches all nearby departure airports at once and compares two itinerary directions:

• Option A: fly into destination_a, return from destination_b

• Option B: fly into destination_b, return from destination_a

Returns both options ranked by total combined price (outbound + return), with flight details and booking tokens for each leg. Uses 4 API credits total.

Check whether flight prices for a route are currently cheap, typical, or expensive. Returns price_insights data: lowest recorded price, typical price range, price level, and a human-readable context string (e.g. "Prices are 18% below typical — good time to book.").

Auto-detects round-trip vs one-way based on whether return_date is provided. Uses 1 API credit.

Find the cheapest airport to fly into at a destination by comparing all airports near a location in parallel. The arrival-side counterpart to compare_airport_prices.

Answers "Which Tokyo airport is cheapest to fly into from London?" or "Should I fly into EZE or AEP in Buenos Aires?". Uses one API credit per airport (default 5, max 10). Results sorted by cheapest price.

Search for a split itinerary via a stopover city — fly into a hub, spend N days, then continue to your final destination. E.g. LHR → Dubai (3 days) → NRT.

Searches: origin → stopover on outbound_date, stopover → destination on outbound_date + stopover_days. Optionally also searches destination → origin on return_date. Stopover location is resolved to airports automatically.

Uses 2 API credits (3 if return_date provided).

Search a grid of outbound + return date combinations to find the cheapest week to fly. Answers "What's the cheapest combination of July departure and August return for LHR-JFK?".

Generates all (outbound, return) pairs from two date ranges (return must be after outbound), capped at 30 combinations searched in parallel. Returns results sorted by cheapest price with trip_days calculated.

Uses 1 API credit per date combination (max 30).