Google Flights MCP Server

A FastMCP server that provides Google Flights data access via Model Context Protocol (MCP). Search for flights, find airports, and get pricing information through standardized MCP tools.

Features

• Flight Search: Find flights between airports with flexible search criteria
• Airport Lookup: Search airports by code, name, or city with comprehensive database
• Price Optimization: Get cheapest flight options sorted by price
• Best Flights: Access Google's recommended flight selections
• Multiple Transports: Support for stdio (development) and HTTP (production) modes
• CLI Interface: Built-in testing and management commands

Installation

Using uvx (Recommended)

# Install and run directly with uvx
uvx google-flights-mcp --help

Using pip

pip install google-flights-mcp

Using Docker (For Remote Deployment)

# Build and run with Docker
docker build -t google-flights-mcp .
docker run -p 8000:8000 google-flights-mcp

# Or use docker-compose for easier management
docker-compose up

Quick Start with uvx

MCP Server Modes

# Default mode (stdio transport for Claude Desktop and MCP clients)
uvx google-flights-mcp serve

# HTTP mode (for remote access)
uvx google-flights-mcp serve --transport http --host 0.0.0.0 --port 8000

# Check server status and capabilities
uvx google-flights-mcp status

Testing Commands

# Test flight search
uvx google-flights-mcp test-search LAX JFK 2025-12-25

# Test airport search
uvx google-flights-mcp test-airports "Los Angeles"

# Show version information
uvx google-flights-mcp version

Short Command Alias

The package also provides a shorter gf command:

# All commands work with the shorter alias
uvx google-flights-mcp serve
# is equivalent to
uvx --from google-flights-mcp gf serve

MCP Integration

With MCP Inspector

For development and testing with MCP Inspector:

uvx google-flights-mcp serve

Then connect your MCP client to the stdio transport.

HTTP Server Mode

For production use or remote MCP clients:

uvx google-flights-mcp serve --transport http --host 0.0.0.0 --port 8000

MCP clients can connect to: http://your-server:8000/mcp

With Claude Desktop

To use this MCP server with Claude Desktop, add the following configuration to your Claude Desktop settings:

{
  "mcpServers": {
    "google-flights": {
      "command": "uvx",
      "args": [
        "google-flights-mcp",
        "serve"
      ]
    }
  }
}

This configuration will:

• Automatically install the latest version using uvx
• Run the server with stdio transport (default for Claude Desktop)
• Make flight search tools available in Claude Desktop

After adding this configuration, restart Claude Desktop and you'll have access to all the flight search tools directly in your conversations.

#### Alternative Configuration with HTTP Transport

For advanced users who prefer HTTP transport for remote access:

{
  "mcpServers": {
    "google-flights": {
      "command": "uvx",
      "args": [
        "google-flights-mcp",
        "serve",
        "--transport",
        "http",
        "--host",
        "127.0.0.1",
        "--port",
        "8000"
      ]
    }
  }
}

Available MCP Tools

search_flights

Search for flights between two airports.

Parameters:

• origin (string): Origin airport code (e.g., "LAX")
• destination (string): Destination airport code (e.g., "JFK")
• departure_date (string): Departure date in YYYY-MM-DD format
• return_date (string, optional): Return date for round-trip flights
• seat_class (string): Seat class - "economy", "premium_economy", "business", "first"
• adults (integer): Number of adult passengers (default: 1)
• children (integer, optional): Number of child passengers
• infants (integer, optional): Number of infant passengers
• max_results (integer): Maximum results to return (default: 6)

find_airports

Search for airports by code, name, or city.

Parameters:

• query (string): Search query (airport code, name, or city)
• limit (integer): Maximum results to return (default: 10)

get_cheapest_flights

Get flights sorted by price (lowest first).

Parameters: Same as search_flights

get_best_flights

Get Google's recommended "best" flights balancing price, duration, and convenience.

Parameters: Same as search_flights

get_server_status

Get server status and capabilities information.

Parameters: None

Development Setup

Requirements

• Python 3.8+
• rye (recommended) or pip

Setup with rye

# Clone the repository
git clone https://github.com/tistaharahap/google-flights-mcp
cd google-flights-mcp

# Install dependencies
rye sync

# Run the MCP server
rye run python -m google_flights_mcp.cli serve

# Run tests
rye run python -m google_flights_mcp.cli test-search LAX JFK 2025-12-25

# Code formatting and linting
rye run ruff check
rye run ruff format

Configuration

Transport Options

• stdio: For MCP Inspector and direct client integration
• streamable-http: For remote access and production deployments

Environment Variables

The server uses standard MCP environment variables and configurations. No API keys are required as it uses public Google Flights data via the fast-flights library.

Docker Deployment

Building and Running with Docker

# Build the Docker image
docker build -t google-flights-mcp .

# Run the container
docker run -d \
  --name google-flights-mcp \
  -p 8000:8000 \
  --restart unless-stopped \
  google-flights-mcp

# Check container logs
docker logs google-flights-mcp

# Stop the container
docker stop google-flights-mcp

Using Docker Compose (Recommended)

The repository includes a docker-compose.yml file for easier deployment:

# Start the service
docker-compose up -d

# View logs
docker-compose logs -f

# Stop the service
docker-compose down

# Rebuild and restart
docker-compose up --build -d

Production Deployment with Nginx

For production deployments, use the nginx profile for reverse proxy and SSL termination:

# Start with nginx reverse proxy
docker-compose --profile production up -d

# This will start both the MCP server and nginx
# Configure SSL certificates in ./ssl/ directory
# Customize nginx.conf for your domain and SSL setup

Docker Configuration

The Docker setup includes:

• Multi-stage build for optimized image size
• Non-root user for enhanced security
• Health checks for container monitoring
• HTTP transport configured for remote access
• Port 8000 exposed for MCP client connections

Environment Variables

You can customize the deployment using environment variables:

# Custom host and port
docker run -p 9000:9000 \
  -e GOOGLE_FLIGHTS_HOST=0.0.0.0 \
  -e GOOGLE_FLIGHTS_PORT=9000 \
  google-flights-mcp

# Or in docker-compose.yml:
environment:
  - GOOGLE_FLIGHTS_HOST=0.0.0.0
  - GOOGLE_FLIGHTS_PORT=8000

Connecting to Dockerized MCP Server

When running in Docker, the server is accessible via HTTP transport:

• Local access: http://localhost:8000/mcp
• Remote access: http://your-server-ip:8000/mcp

Configure your MCP client to connect to the HTTP endpoint instead of stdio transport.

Data Source

This server uses the fast-flights library to access Google Flights data. The library provides real-time flight information without requiring API keys.

License

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