fli
fli is an MCP server, CLI, and Python library that searches Google Flights for prices, dates, and filtered flight options.
What it is good for
- Comparing flight prices across a date range
- Finding the cheapest flights with specific airline or stop filters
- Searching flights from an AI app without opening a browser
- Pulling flight data into a script for travel planning
At a glance
- Who it is for
- Setup
- Guided command-line setup
Level 4 of 5. You copy and paste commands into a terminal by following the instructions. Comfortable territory for vibe coders.
- Cost
- Free and open source
- Type
- MCP server or connector
- Tasks
- Works with
- Claude Desktop
Momentum
- Rank this week
- Not ranked yet
- Best rank
- None yet
- GitHub stars
- 3,468
GitHub numbers as of Nov 2, 2026. Updated weekly.
Official links
Setup steps are on the official pages. We do not repeat them here, since they change.
Questions
- Is fli free?
- Yes. It is free and open source (MIT license).
- Do I need to know how to code to use fli?
- You do not need to write code, but setup means copying and pasting commands into a terminal by following its instructions.
- What does fli work with?
- According to its own documentation, it works with Claude Desktop.
- What is fli good for?
- Comparing flight prices across a date range, finding the cheapest flights with specific airline or stop filters, searching flights from an AI app without opening a browser, and pulling flight data into a script for travel planning.
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