fli

Overview

Fli is a Python library that provides programmatic access to Google Flights data through reverse engineering the Google Flights API, rather than web scraping. This direct API approach offers faster, more reliable results and better protection against breaking changes. The MCP server implementation exposes two primary tools: search_flights for finding flights on specific dates with detailed filters, and search_dates for discovering the cheapest travel dates across a flexible date range. The server can run via STDIO or HTTP, making it easy to integrate with various clients including Claude Desktop.

Try asking AI

After installing, here are 5 things you can ask your AI assistant:

• search_flights

  Search for flights on a specific date with detailed filters

  Try:Search for flights from JFK to LHR on October 25, 2026Try:Find non-stop business class flights from SFO to NRTTry:Show me the cheapest flights from LAX to SYD with a departure window between 6 AM and 8 PM
• search_dates

  Find the cheapest travel dates across a flexible date range

  Try:Find the cheapest dates to fly from Chicago to Paris in January 2026Try:Show me the best flight deals from Boston to Tokyo in the first two weeks of DecemberTry:Find cheap round-trip dates from Miami to London for a 7-day trip

Comparable tools

Installation

# Install using pipx (recommended for CLI)
pipx install flights

# Or using pip
pip install flights

{
  "mcpServers": {
    "fli": {
      "command": "/Users/<user>/.local/bin/fli-mcp"
    }
  }
}

FAQ

How does Fli access Google Flights data?

Fli directly interacts with Google Flights' API through reverse engineering, rather than web scraping, resulting in faster, more reliable results.

What are the main differences between search_flights and search_dates?

search_flights finds flights on specific dates with detailed filters, while search_dates finds the cheapest travel dates across a flexible date range.

Compare fli with