Search flights via Google Flights (SerpApi)
Search flights via Google Flights (SerpApi). Returns best flights, prices, airlines, and price insights.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
689 msmedian answer time
$0.02listed price per call
$0.02price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://x402engine.app/api/travel/flights
| Category | Market data |
|---|---|
| Provider host | x402engine.app |
| Networks | eip155:4326, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 38 from 7 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.02 | 689 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"adults": "1",
"currency": "USD",
"departureDate": "2026-04-15",
"destination": "LAX",
"origin": "JFK",
"travelClass": "1"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"additionalProperties": false,
"properties": {
"adults": {
"default": "1",
"description": "Number of adult passengers",
"type": "string"
},
"children": {
"description": "Number of children",
"type": "string"
},
"currency": {
"default": "USD",
"description": "Currency code (e.g. USD, EUR)",
"type": "string"
},
"departureDate": {
"description": "Departure date (YYYY-MM-DD)",
"example": "2026-04-15",
"type": "string"
},
"destination": {
"description": "Arrival airport IATA code",
"example": "LAX",
"type": "string"
},
"maxPrice": {
"description": "Maximum price filter",
"type": "string"
},
"origin": {
"description": "Departure airport IATA code",
"example": "JFK",
"type": "string"
},
"returnDate": {
"description": "Return date for round trips (YYYY-MM-DD)",
"type": "string"
},
"stops": {
"description": "0=Nonstop only, 1=Up to 1 stop, 2=Up to 2 stops",
"type": "string"
},
"travelClass": {
"default": "1",
"description": "1=Economy, 2=Premium Economy, 3=Business, 4=First",
"type": "string"
}
},
"required": [
"origin",
"destination",
"departureDate"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}