# Faro — Flight Fare Error Detector > Faro detects airline fare errors in real time across European airports. Free flight deals with 50-90% discounts. Faro monitors flight prices every 30 minutes. When a price drops below 50% of the 30-day median, Faro flags it as a fare error. Users can book directly with the airline at the discounted price. ## Key Facts - Real-time fare error detection every 30 minutes - Covers airports in France, Spain, Germany, Italy, and Portugal - 100% free — no account or subscription required - Airlines honor the vast majority of fare errors - EU Regulation CE 261/2004 protects passenger rights - Historical archive of all detected fare errors with prices, discounts, and airlines ## Countries Covered - France: Paris CDG, Paris Orly, Lyon, Marseille, Nice, Toulouse, Bordeaux, Nantes, Strasbourg, and more - Spain: Madrid, Barcelona, Malaga, Valencia, Seville, Bilbao, and more - Germany: Frankfurt, Munich, Berlin, Hamburg, Dusseldorf, and more - Italy: Rome, Milan, Naples, Venice, Bologna, and more - Portugal: Lisbon, Porto, Faro, and more ## Content Types - /france/ — Homepage with live fare errors from French airports - /france/vols-pas-chers — All active cheap flight deals - /france/destination/{city} — Fare errors to a specific destination with price history - /france/aeroport/{slug} — Flights from a specific airport - /france/erreur-tarifaire — Complete guide to airline fare errors - /france/butin — Full archive of all detected fare errors ## How Fare Errors Work Airlines occasionally publish incorrect prices due to technical glitches, currency conversion bugs, or human error. These "fare errors" typically offer 50-90% discounts. They last only a few hours before correction. Faro detects them automatically and displays them for free. ## Data Sources All prices are sourced directly from airline booking systems. Faro does not sell tickets — it redirects users to the airline's website. Archive data is timestamped and verifiable. ## Contact - Website: https://faro.invent-better.com - Built by Mickael at Invent Better