FlightStats is a cutting-edge data services company focused on commercial aviation. We are the leading provider of real-time global flight data to companies and individuals across the travel ecosystem.
The DelayIndexService API returns a measure of the level of departure delays a specified airport is currently experiencing. A low index (0-1) indicates that departures are running relatively smoothly. A higher index (4-5) is indicative of significant delays and flight operations disruptions. The index is updated every 30 minutes.