---
title: "Kayak Flights API: Round Trip | Perceptlayer"
description: "Round Trip from Kayak Flights as JSON. 1 credit per successful call."
url: https://perceptlayer.com/apis/kayak-flights/round-trip
---

[APIs](https://perceptlayer.com/apis) / [Kayak Flights](https://perceptlayer.com/apis/kayak-flights) / Round Trip

# Kayak Flights: Round Trip

Round Trip from Kayak Flights as JSON. 1 credit per successful call.

GET `/v1/kayak-flights/round-trip`

## Parameters

Send parameters in the query string.

| Parameter | Type | Required | Allowed values |
| --- | --- | --- | --- |
| `origin` | string | Required | Any |
| `destination` | string | Required | Any |
| `departure_date` | string | Required | Any |
| `adults` | integer | Optional | Any |
| `children` | integer | Optional | Any |
| `infants_in_seat` | integer | Optional | Any |
| `infants_on_lap` | integer | Optional | Any |
| `cabin` | string | Optional | economy, premium\_economy, business, first |
| `sort` | string | Optional | best, price, duration |
| `page` | integer | Optional | Any |
| `currency` | string | Optional | Up to 3 characters |
| `locale` | string | Optional | Any |
| `include_price_prediction` | boolean | Optional | Any |
| `include_display_metadata` | boolean | Optional | Any |
| `return_date` | string | Required | Any |

## Example request

cURL shell 

```
curl "https://api.perceptlayer.com/v1/kayak-flights/round-trip?origin=SFO&destination=NYC&departure_date=2026-09-10&return_date=2026-09-17&adults=1" \
  -H "X-API-Key: $API_KEY"
```

[Run this endpoint in the playground](https://perceptlayer.com/apis/kayak-flights?try=round-trip#playground) with your own parameters. 1 credit per successful call; failed calls are free.