# KAYAK Flight Route Overview

> KAYAK Flight Route Overview is a paid API for AI agents from api.healthtravel-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-29).

Returns up to 20 recent round-trip flight deals and route insights for a given origin-destination city/airport pair from KAYAK's public route page

## Facts

- Endpoint: GET https://api.healthtravel-api.workers.dev/api/travel/kayak?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kayak-flight-route-overview-eb7594f2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_f5jHIEnYNPDSaG3-Y0unx

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability kayak-flight-route-overview-eb7594f2
```

Example prompt: What are the recent flight deals and route insights from KAYAK for London to Paris — I want to know the typical price range, cheapest month, and which airline is usually cheapest on that LON to PAR route.

## When to prefer this

Use this endpoint when you need a quick, no-date-required overview of typical fares, airline options, and route trends between two cities or airports. It is ideal for research, budgeting, and travel planning contexts where the user wants historical pricing patterns and route insights rather than live booking availability for a specific date. Not suitable when you need real-time seat availability or a specific travel date search.

## Known failure modes

- Invalid or unrecognized IATA codes return an error or empty results
- Route with no KAYAK data returns empty deals array
- Insights may be absent for low-traffic or obscure routes
- Data reflects KAYAK's cached route page, not live availability — prices may be stale
- Missing required 'from' or 'to' parameters returns a validation error

## How this service works

KAYAK flight route overview between two city or airport codes (e.g. LON to PAR): up to 20 recent round-trip deals KAYAK found (airline, departure/arrival airport, departure time, duration, price in USD), the route's lowest recent price and KAYAK's published route insights as question/answer text (typical price range, cheapest month, day and airline, delays, flights per week). From KAYAK's public route page; not a live date search.

## Output

A JSON response containing up to 20 recent round-trip flight deals (airline, departure/arrival airports, departure time, duration, price in USD), the route's lowest recent price, and KAYAK route insight Q&A covering typical price range, cheapest month, cheapest day, cheapest airline, delay patterns, and weekly flight frequency.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "from",
      "to"
     ],
     "properties": {
      "to": {
       "type": "string",
       "description": "Destination IATA city or airport code, e.g. PAR, MIA"
      },
      "from": {
       "type": "string",
       "description": "Origin IATA city or airport code, e.g. LON, NYC, JFK"
      },
      "insights": {
       "type": "string",
       "description": "Include route insight answers: true (default) or false"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/kayak-flight-route-overview-eb7594f2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.healthtravel-api.workers.dev](https://www.zero.xyz/host/api.healthtravel-api.workers.dev/llms.txt)