Recipe · Flights API
Fare-alert cron with Zapier
The verdict field makes alerting trivial: poll on a schedule and fire only when price_range_in_relation_to_other_periods === "low". No home-grown price-history database needed, because Google’s band IS the history. Send the buy_link in the alert so the user can book from the notification.
Free tier on RapidAPI. No card to try.
Step 1 · Connect
Webhooks by Zapier → Custom Request
A native Zapier app is in review and not listed yet, so this page documents the built-in Webhooks step, which works today. Zapier parses the JSON response, so every field below is mappable in later steps.
URL https://api.flightpowers.com/v1/flights/oneway
Method POST
Headers x-api-key: YOUR_RAPIDAPI_KEY
Content-Type: application/jsonBring your own RapidAPI key: every request is billed to your own subscription, never ours.
Step 2 · The job
The job
The job in plain words. In Zapier you express it as the configuration below instead of a prompt.
“Every morning, check JFK→LHR fares for my December dates and alert me when Google’s verdict flips to low.”
Step 3 · Under the hood
What goes in the request body
Paste this as the raw JSON body. Field names are the ones in the OpenAPI spec, so nothing here needs translating.
POST https://api.flightpowers.com/v1/flights/oneway
{
"from_airport": "JFK",
"to_airport": "LHR",
"departure_date": "2026-12-10",
"limit": 3
}One request per run. A daily check is about 30 requests a month.
Step 4 · Read the response
Fields your logic reads
The response is flat JSON. These are the fields this recipe branches on, with what each one means.
pricestringThe fare as Google Flights displays it: “$56”. The numeric twin price_as_number rides alongside for sorting and arithmetic.
price_range_in_relation_to_other_periods"low" | "typical" | "high" | nullGoogle’s verdict on the current fare against that band, the single field alerting, ranking, and “book now” logic branch on.
buy_linkstring (URL)A Google Flights deep link that reopens this exact itinerary. Hand it to the user; it just works.
Questions, answered plainly
- Is my key billed to me?
- Yes. The key you put in the Zapier step is your own RapidAPI key, and every run meters against your own subscription. Zapier bills you separately for its own runs; the two bills never mix.
- Does this need a server of mine?
- No. Zapier calls api.flightpowers.com over plain HTTPS. There is nothing to host, and no callback for us to reach.
- What does it cost?
- The Google Flights Live API's free tier is 10 requests/month with a hard cap: enough to verify your key works, not to evaluate. The PRO plan is $10/month for 2,500 requests, and every plan includes every endpoint. A single daily check is about 30 requests a month: past the free tier’s 10, comfortably inside PRO.
Also works with
Fare-alert cron, elsewhere in your stack
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Live Google Flights and Booking.com data as clean JSON. Free tier on RapidAPI, no card to try.
Free tier: 10 requests/month. No card to try.