What is Flight Search?

Search Google Flights through SerpApi: one-way and round-trip flights by IATA airport code.

How do I install Flight Search?

Clone Flight Search from https://github.com/arjunprabhulal/mcp-flight-search and configure it as an MCP server in your client (Claude Desktop, Cursor, or VS Code).

Is Flight Search open source?

Yes, Flight Search is open source under the MIT license. Source code is available at https://github.com/arjunprabhulal/mcp-flight-search.

What category does Flight Search belong to?

Flight Search is listed under Search & Knowledge MCP servers on MCPFind.

Flight Search — MCP Server for Search & Knowledge

MCP Flight Search

An MCP server that searches Google Flights through SerpApi, for Claude, Cursor and other MCP clients. One-way and round-trip searches by IATA airport code, with prices, durations, stops and times.

Requirements

Python 3.10 or later (or uv)
A SerpApi key in SERP_API_KEY (serpapi.com has a free tier)

Use it from an MCP client

Add it to your client's MCP configuration (Claude Desktop, Claude Code, Cursor, ...):

{
  "mcpServers": {
    "flight-search": {
      "command": "uvx",
      "args": ["mcp-flight-search"],
      "env": { "SERP_API_KEY": "your-serpapi-key" }
    }
  }
}

Or install it with pip install mcp-flight-search and use "command": "mcp-flight-search".

Run it yourself

export SERP_API_KEY="your-serpapi-key"
mcp-flight-search                                    # stdio (default)
mcp-flight-search --connection_type http --port 3001 # Streamable HTTP at http://127.0.0.1:3001/mcp

LOG_LEVEL=DEBUG shows more detail on stderr. The API key is never logged.

With Docker:

docker build -t mcp-flight-search .
docker run -i --rm -e SERP_API_KEY=your-serpapi-key mcp-flight-search

Tools

Tool	What it does
`search_flights_tool`	Flights between two airports. `origin`, `destination`: IATA codes such as `ATL`, `LAX`. `outbound_date`: `YYYY-MM-DD`. `return_date` (optional): `YYYY-MM-DD` for a round trip. Returns structured results: airline, price (USD), duration, stops, departure, arrival, cabin class.
`server_status`	Checks the server is running and reports its version.

Development

uv sync
uv run pytest
uv run ruff check .

License

MIT

Set up in your AI client

AI clientOperating system

Merge this template into ~/Library/Application Support/Claude/claude_desktop_config.json. Keep existing servers. Add any arguments, credentials, and permissions required by the maintainer; this template has not been install-tested.

json

{
  "mcpServers": {
    "io-github-arjunprabhulal-mcp-flight-search": {
      "command": "uvx",
      "args": [
        "mcp-flight-search"
      ]
    }
  }
}

Restart Claude Desktop completely for changes to take effect. Confirm the server appears connected in the client’s tool list, then try a read-only example from its documentation.

Claude Desktop setup reference

Compatible MCP Clients

Flight Search works with any MCP-compatible client. Copy the config snippet from the Configuration section above and add it to the file shown for your client, then restart the application.

Claude Desktop~/Library/Application Support/Claude/claude_desktop_config.jsonRestart Claude Desktop completely for changes to take effect.

Cursor~/.cursor/mcp.jsonRestart Cursor for changes to take effect.

VS Code.vscode/mcp.jsonReload VS Code window for changes to take effect.

Windsurf~/.codeium/windsurf/mcp_config.jsonRestart Windsurf for changes to take effect.

Claude Code.mcp.jsonSave at the project root, then start Claude Code in that project and review the MCP server approval prompt. Keep real credentials out of shared files.

Flight Search