tailodds FORECAST
Partly stale · checked FAA NAS status 222 h staleForecast cycle 71 minLightning 222 h staleWeather observations no data staleFAA surface data 2 minFAA flight data 3 min

FAA NAS status is stale (222 h old). No FAA restriction can start or end on the wire until it is fresh again.

Lightning is stale (222 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 Resolved Delay BOS departures

Boston departure delays ease: 73% late in the last hour, still above normal

Current state
Resolved: closed without a new report (No usable measurement for 6 h; closed without a recovery report.)
Started
Latest activity
Updates
3
Create monitor View BOSFlights at BOS

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.

Updates oldest first

  1. Initial Observed

    Boston departures running late: 60% left 15+ min late in the last hour

    Of 15 departures that took off between 2:30 PM and 3:30 PM EST, 9 left at least 15 minutes late. Boston typically sees 30% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 3 PM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window2:30 PM–3:30 PM EST
    Sample15 flights, 9 late (60%)
    Comparison30% typical · US DOT on-time data, last 12 published months, departures in the 3 PM hour
    Median delay16.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-07 20:30 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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  2. Escalation Observed

    Boston departure delays worsen: 83% late in the last hour

    What changed: late share 60% → 83%

    Of 12 departures that took off between 8:48 PM and 9:48 PM EST, 10 left at least 15 minutes late. Boston typically sees 42% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 9 PM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window8:48 PM–9:48 PM EST
    Sample12 flights, 10 late (83%)
    Comparison42% typical · US DOT on-time data, last 12 published months, departures in the 9 PM hour
    Median delay111.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-08 02:48 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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  3. De-escalation Observed

    Boston departure delays ease: 73% late in the last hour, still above normal

    What changed: late share 83% → 73%

    Of 22 departures that took off between 9:42 PM and 10:42 PM EST, 16 left at least 15 minutes late. Boston typically sees 47% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 10 PM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window9:42 PM–10:42 PM EST
    Sample22 flights, 16 late (73%)
    Comparison47% typical · US DOT on-time data, last 12 published months, departures in the 10 PM hour
    Median delay73.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-08 03:42 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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Closed Sun Nov 8, 5:30 AM EST: No usable measurement for 6 h; closed without a recovery report.