Flyspy is a flight search engine that visualizes airline ticket prices across dates and destinations as interactive graphs, letting users instantly compare the cheapest days to fly and evaluate alternative airports side-by-side rather than checking prices one trip at a time. Founded by Robert Metcalfe after two years of frustration with traditional airline booking systems, the service combines a simple interface with immediate practical value by making the airline industry's pricing structure transparent. The startup, which was self-funded at the time and planning to seek investment, planned to launch an API for third-party developers to integrate its technology into other services.
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