Fli — Flight Search MCP Server
Fli MCP server enabling AI agents to search for flights — querying Google Flights data for available flights between airports, retrieving fare prices and schedules, finding cheapest travel dates, and integrating flight search into agent-driven travel planning and booking research workflows.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Scrapes public data. No credentials. Community MCP. Respect Google ToS.
⚡ Reliability
Best When
An agent needs to search for and compare flights — for travel planning assistance, itinerary generation, or fare research with Google Flights data.
Avoid When
You need to book flights, require production-grade travel API, or need hotel/rental car data alongside flights.
Use Cases
- • Searching for flights between airports from travel planning agents
- • Finding cheapest fares and travel dates from budget travel agents
- • Retrieving flight schedules and durations from itinerary planning agents
- • Comparing airline prices for route options from trip optimization agents
- • Building travel itineraries with flight data from assistant agents
- • Monitoring fare changes for travel alerts from travel monitoring agents
Not For
- • Booking flights (search/data only; no booking capability)
- • Hotel, car rental, or other travel bookings
- • Teams needing professional travel API with SLA (use Amadeus or Sabre)
Interface
Authentication
No authentication required — scrapes Google Flights data. No API key needed. Google's terms of service apply to automated access.
Pricing
Free and open source. Uses Google Flights data via scraping — no official Google API. Reliability depends on Google Flights page structure remaining stable.
Agent Metadata
Known Gotchas
- ⚠ Google Flights scraping is fragile — may break when Google updates page structure
- ⚠ Google may block automated requests — CAPTCHA or IP blocking risk
- ⚠ Prices displayed may not be bookable — always verify on actual booking site
- ⚠ Airport codes must be IATA format (JFK, LAX, LHR)
- ⚠ Community MCP — individual project, may not be actively maintained
- ⚠ Flight data is for research/planning only — not for production travel systems
Alternatives
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Scores are editorial opinions as of 2026-03-06.