tailodds FORECAST
Partly stale · checked FAA NAS status 222 h staleForecast cycle 1 hLightning 222 h staleWeather observations no data staleFAA surface data 6 minFAA flight data 7 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 SFO departures

SFO departures back near normal: 12% late in the last hour

Current state
Resolved at 7:05 AM PST
Started
Latest activity
Updates
2
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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.

Updates oldest first

  1. Initial Observed

    SFO departures running late: 52% left 15+ min late in the last hour

    Of 25 departures that took off between 7:19 PM and 8:19 PM PST, 13 left at least 15 minutes late. SFO typically sees 25% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 7 PM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window7:19 PM–8:19 PM PST
    Sample25 flights, 13 late (52%)
    Comparison25% typical · US DOT on-time data, last 12 published months, departures in the 7 PM hour
    Median delay21.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-09 04:19 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. Recovery Observed

    SFO departures back near normal: 12% late in the last hour

    What changed: late share 67% at worst → 12% now

    Of 17 departures that took off between 6:05 AM and 7:05 AM PST, 2 left at least 15 minutes late. SFO typically sees 6% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 6 AM hour). Measured by Tailodds from FAA flight data against airline schedules. The late share has stayed at or below 16% for 31 minutes across 16 checks, each with at least 12 flights and current data.

    Evidence for this update
    Measurement window6:05 AM–7:05 AM PST
    Sample17 flights, 2 late (12%)
    Comparison6% typical · US DOT on-time data, last 12 published months, departures in the 6 AM hour
    Median delay2.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-09 15:05 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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