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Ai-optimized travel itinerary generator with Skyscanner, Booking.com and Gmail

Cheng Siong ChinCheng Siong Chin
851 views
2/3/2026
Google Cloud TranslationTranslationGoogle SheetsAutomationData Storage
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Introduction

Automates travel planning by aggregating flights, hotels, activities, and weather via APIs, then uses AI to generate professional itineraries delivered through Gmail and Slack.

How It Works

Webhook receives requests, searches APIs (Skyscanner, Booking.com, Kiwi, Viator, weather), merges data, AI builds itineraries, scores options, generates HTML emails, delivers via Gmail/Slack.

Workflow Template

Webhook → Extract → Parallel Searches (Flights/Hotels/Activities/Weather) → Merge → Build Itinerary → AI Processing → Score → Generate HTML → Gmail → Slack → Response

Workflow Steps

  1. Trigger & Extract: Receives destination, dates, preferences, extracts parameters.
  2. Data Gathering: Parallel APIs fetch flights, hotels, activities, weather, merges responses.
  3. AI Processing: Analyzes data, creates itinerary, ranks recommendations.
  4. Delivery: Generates HTML email, sends via Gmail/Slack, confirms completion.

Setup Instructions

  1. API Configuration: Add keys for Skyscanner, Booking.com, Kiwi, Viator, OpenWeatherMap, OpenRouter.
  2. Communication: Connect Gmail OAuth2, Slack webhook.
  3. Customization: Adjust endpoints, AI prompts, HTML template, scoring criteria.

Prerequisites

  • API keys: Skyscanner, Booking.com, Kiwi, Viator, OpenWeatherMap, OpenRouter
  • Gmail account
  • Slack workspace
  • n8n instance

Use Cases

  • Corporate travel planning
  • Vacation itinerary generation
  • Group trip coordination

Customization

  • Add sources (Airbnb, TripAdvisor)
  • Filter by budget preferences
  • Add PDF generation
  • Customize Slack format

Benefits

  • Saves 3-5 hours per trip
  • Real-time pricing aggregation
  • AI-powered personalization
  • Automated multi-channel delivery

AI-Optimized Travel Itinerary Generator with Skyscanner, Booking.com, and Gmail

This n8n workflow automates the generation of personalized travel itineraries and sends them via email. It leverages AI to create detailed plans based on user input, integrates with external APIs to find flight and accommodation options, and uses Slack for human-in-the-loop approval.

What it does

This workflow streamlines the process of creating and delivering travel itineraries by:

  1. Receiving Travel Requests: It listens for incoming travel requests via a webhook, which are expected to contain details like destination, dates, and preferences.
  2. Preparing Data for AI: It transforms the incoming data into a structured format suitable for the AI agent.
  3. Generating Itinerary with AI: An AI agent (powered by an OpenRouter Chat Model) processes the travel request to generate a detailed itinerary.
  4. Fetching Flight and Accommodation Options:
    • It makes an HTTP request, likely to a travel API (e.g., Skyscanner, Booking.com, though specific API calls are not detailed in the provided JSON), to find relevant flight and accommodation options based on the AI-generated itinerary.
  5. Human-in-the-Loop Approval: It sends the generated itinerary and booking options to a Slack channel for a human to review and approve.
  6. Sending Itinerary via Email: Upon approval, it sends the complete, AI-generated, and human-approved travel itinerary to the user's email address using Gmail.
  7. Responding to Webhook: It sends a confirmation back to the initiating webhook once the process is complete.

Prerequisites/Requirements

To use this workflow, you will need:

  • n8n Instance: A running n8n instance.
  • Webhook Source: An application or system capable of sending HTTP POST requests to the n8n webhook.
  • OpenRouter Account: An API key for OpenRouter to power the AI Chat Model.
  • Slack Account: A Slack workspace and an API token to send messages for human approval.
  • Gmail Account: A Gmail account configured as an n8n credential to send emails.
  • Travel API Access: Access to a travel API (e.g., Skyscanner, Booking.com, or similar) for fetching flight and accommodation data. You will need the necessary API keys and endpoints configured in the HTTP Request node.

Setup/Usage

  1. Import the Workflow: Import the provided JSON into your n8n instance.
  2. Configure Credentials:
    • OpenRouter Chat Model: Set up your OpenRouter API key credential.
    • Slack: Configure your Slack API token credential.
    • Gmail: Set up your Gmail OAuth2 or API key credential.
  3. Configure Webhook:
    • The "Webhook" node will provide a unique URL. This URL is where your external system should send travel requests.
  4. Configure HTTP Request:
    • Edit the "HTTP Request" node to point to your chosen travel API (e.g., Skyscanner, Booking.com).
    • Update the request body, headers, and authentication methods according to the API's documentation.
    • Ensure the data passed to this node (from the AI Agent) correctly maps to the API's required parameters (e.g., destination, dates).
  5. Configure Slack:
    • In the "Slack" node, specify the channel ID where approval requests should be posted.
    • Customize the message content to clearly present the itinerary and booking options for review.
  6. Configure Gmail:
    • In the "Gmail" node, ensure the To field dynamically pulls the recipient's email address from the initial webhook data.
    • Customize the subject and body of the email to present the final itinerary in a user-friendly format.
  7. Activate the Workflow: Once all configurations are complete, activate the workflow.

Now, whenever a travel request is sent to the webhook, the workflow will automatically generate an itinerary, fetch booking options, seek human approval, and email the final plan.

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