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Cirium's Flex APIs consist of a set of airline, airport, flight, on-time performance and weather information services. Get a free evaluation account to try them out.

Latest Blog Posts
- Weekly COVID-19 aviation update: 737 Max in-service fleet climbs through 100 with a dozen operators on stream
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- Aviation financiers and analysts can better monitor and forecast airline performance with Cirium data
- Cirium powers the data for the world’s top airlines
- Aviation sustainability momentum continues