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The Operational Science: How Airlines Predict Delays Within Minutes of Boarding

Airlines can determine if a flight will be late just moments after boarding begins by using sophisticated software and real-time data. This technology tracks numerous variables, including the rate of passenger boarding pass scans, the progress of baggage loading, and the aircraft's technical readiness. By continuously analyzing this data, the system generates a precise "time to off-blocks" prediction. This allows ground staff and flight crews to make informed, proactive decisions to maintain on-time performance. The system provides a crucial countdown that helps manage everything from last-minute connecting passengers to final departure preparations.

Official Source: https://simpleflying.com/why-airlines-know-minutes-boarding-whether-flight-late/