5¢ per search

Flight search API

Let your agent search flights.

Search live fares by route and date. One response lists airlines, flight numbers, stops, durations and prices.

One TaskFuel account and prepaid balance. Connect your agent and it shows the price before it pays.

Start for FreeWhat it can do
No card required
Works with

Flight search API: what your agent gets.

A one-way economy search worked in our test. Round-trip returns and filters are also available and were not run.

  • Search fares by route and date

    Itineraries with airlines, flight numbers, aircraft, times, stops, duration and fare. Our test returned 24 one-way itineraries.

    $0.05 / search
  • Narrow the search

    Filter by stops, cabin, airlines, maximum price, duration and departure times. Each filtered search is a separate paid call.

    $0.05 / search
  • Choose a return flight

    For a round trip, repeat the search with the chosen outbound itinerary’s departure token to get return options.

    $0.05 / search

Flight search, tested.

We searched one-way fares from New York JFK to London Heathrow for 20 November 2026. The route returned 24 itineraries with fares, airlines and times.

TaskFuel test run ·

Charged $0.05

Your agent asked

Find one-way flights from New York JFK to London Heathrow on 20 November 2026
Data from
x402atlas

What came back

Itineraries returned
24 one-way options
Cheapest
$335, Virgin Atlantic VS 46, nonstop, 7 h 14 min
Times
Leaves JFK 19:01, lands LHR 07:15 next day
Price context
Typical range $180 to $310, price level high
Per itinerary
Airline, flight number, aircraft, times, stops, duration, fare

One one-way economy search for a single date.

Try the API request Quote first, then run

1. Check the price

Use your TaskFuel API key as TASKFUEL_API_KEY in your terminal or server. Keep it out of browser code. This request checks the price without paying.

This is the exact fare search from the test. Fares change, so a new search can return different prices.

curl --fail-with-body https://app.taskfuel.ai/v1/call \
  -H "Authorization: Bearer $TASKFUEL_API_KEY" \
  -H 'Content-Type: application/json' \
  --data-binary @- <<'TASKFUEL_REQUEST'
{
  "url": "https://flights.use.x402atlas.com/search/JFK/LHR?type=2&outbound_date=2026-11-20",
  "method": "GET",
  "dryRun": true
}
TASKFUEL_REQUEST

2. Run the request

Review amount_usd in the quote. To pay and run, change dryRun to false and add maxAmountUsd with that approved amount inside the same JSON object. Keep the inputs unchanged; this limit applies to one call.

3. Read the result

Read best_flights and other_flights: each itinerary has flights[], price, total_duration and layovers. price_insights holds the typical price range and price level for the route.

Setup and API reference · Job polling and timeout recovery

Try it in your next task.

Sign in to TaskFuel and connect your existing agent. Ask it to search flights between two airports and show the price before it makes the paid call.

01

Name the task

Tell your agent what the output needs to contain.

02

See the price

Your agent shows the provider and price before spending.

03

Review the response

Check the output against your task. The call reports its cost and remaining balance.

When to use it.

Planning a trip

Compare fares for one route and date.

Ask your agent for the cheapest and fastest options between two airports. Results list airlines, flight numbers, stops and durations.

Judging a fare

Compare a fare with the typical range.

The response includes a typical price range and a price level for the route, next to the itineraries.

Filtering by what matters

Narrow by stops, cabin or airline.

The search accepts filters for stops, cabin, airlines, price, duration and departure times. Each filtered search is a separate paid call.

Providers for this task.

CapabilityProvidersReference
Search flight faresMunition, 2s, Flight Search & Airfares, StableTravelCompare providers · Endpoint data

Good Questions.

Do I need a flight data account?

No. Your agent pays from your TaskFuel balance, so there is nothing else to sign up for.

What does a flight search cost?

Our JFK to London search cost $0.05 on 30 October 2026. Your agent shows the price for your own request before it pays.

What does a search return?

Itineraries with airlines, flight numbers, aircraft, times, stops, duration and fare, plus a typical price range for the route. Our test returned 24.

Does it cover round trips and filters?

Yes. A round trip uses a second search with the chosen outbound itinerary, and filters cover stops, cabin, airlines, price and times. We tested a one-way search without filters.

Can it book a flight?

No. This guide searches fares and schedules. Booking and ticketing are separate and not included here.

Is this the same as the airport departures guide?

No. This guide searches fares by route and date. The airport departures guide reads a live departure board.

Your agent can do things it couldn’t this morning.

$1 in free credit, no card required.

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