tailodds FORECAST
Partly stale · checked FAA NAS status 231 h staleForecast cycle 81 minLightning 231 h staleWeather observations no data staleFAA surface data 4 minFAA flight data 5 min

FAA NAS status is stale (231 h old). No FAA restriction can start or end on the wire until it is fresh again.

Lightning is stale (231 h old). Lightning items are paused; thunderstorm items still come from official observations.

Weather observations is stale. Weather items are paused until it is fresh again; missing observations never end a weather event.

Observed Significant New Delay BOS departures

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

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Tailodds reports what the FAA publishes, what we measure and what our model forecasts. It doesn’t control airport operations or change bookings; check with your airline about your trip.

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  1. Initial Observed

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

    Of 31 departures that took off between 9:33 AM and 10:33 AM EST, 14 left at least 15 minutes late. Boston typically sees 16% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 10 AM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window9:33 AM–10:33 AM EST
    Sample31 flights, 14 late (45%)
    Comparison16% typical · US DOT on-time data, last 12 published months, departures in the 10 AM hour
    Median delay11.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-13 15:33 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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