tailodds FORECAST
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Observed Significant New Delay DCA departures

National departures running late: 45% left 15+ min late in the last hour

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  1. Initial Observed

    National departures running late: 45% left 15+ min late in the last hour

    Of 22 departures that took off between 9:10 AM and 10:10 AM EST, 10 left at least 15 minutes late. National typically sees 19% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 9 AM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window9:10 AM–10:10 AM EST
    Sample22 flights, 10 late (45%)
    Comparison19% typical · US DOT on-time data, last 12 published months, departures in the 9 AM hour
    Median delay9.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-15 15:10 UTC)
    SourcesTailodds measurement of FAA flight data against airline schedules
    Provenanceobserved_ops observed-ops-v1 · config 2026-10-17.1 · writer template-v1
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