Partly stale · checked FAA NAS status 222 h staleForecast cycle 82 minLightning 222 h staleWeather observations no data staleFAA surface data 6 minFAA flight data 5 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: 7% late in the last hour

Current state
Resolved at 7:04 AM PST
Started
Latest activity
Updates
8
Create monitor View SFOFlights at SFO

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: 63% left 15+ min late in the last hour

    Of 19 departures that took off between 10:58 AM and 11:58 AM PST, 12 left at least 15 minutes late. SFO typically sees 28% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 11 AM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window10:58 AM–11:58 AM PST
    Sample19 flights, 12 late (63%)
    Comparison28% typical · US DOT on-time data, last 12 published months, departures in the 11 AM hour
    Median delay18.0 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 19:58 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

    SFO departure delays worsen: 71% late in the last hour

    What changed: late share 63% → 71%

    Of 24 departures that took off between 1:04 PM and 2:04 PM PST, 17 left at least 15 minutes late. SFO typically sees 29% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 1 PM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window1:04 PM–2:04 PM PST
    Sample24 flights, 17 late (71%)
    Comparison29% typical · US DOT on-time data, last 12 published months, departures in the 1 PM hour
    Median delay43.0 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 22:04 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

    SFO departure delays ease: 39% late in the last hour, still above normal

    What changed: late share 71% → 39%

    Of 23 departures that took off between 1:25 PM and 2:25 PM PST, 9 left at least 15 minutes late. SFO typically sees 29% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 1 PM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window1:25 PM–2:25 PM PST
    Sample23 flights, 9 late (39%)
    Comparison29% typical · US DOT on-time data, last 12 published months, departures in the 1 PM hour
    Median delay6.0 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 22:25 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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  4. Escalation Observed

    SFO departure delays worsen: 75% late in the last hour

    What changed: late share 39% → 75%

    Of 36 departures that took off between 3:18 PM and 4:18 PM PST, 27 left at least 15 minutes late. SFO typically sees 35% 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 window3:18 PM–4:18 PM PST
    Sample36 flights, 27 late (75%)
    Comparison35% typical · US DOT on-time data, last 12 published months, departures in the 3 PM hour
    Median delay67.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-10 00:18 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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  5. De-escalation Observed

    SFO departure delays ease: 59% late in the last hour, still above normal

    What changed: late share 75% → 59%

    Of 17 departures that took off between 8:09 PM and 9:09 PM PST, 10 left at least 15 minutes late. SFO typically sees 32% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 8 PM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window8:09 PM–9:09 PM PST
    Sample17 flights, 10 late (59%)
    Comparison32% typical · US DOT on-time data, last 12 published months, departures in the 8 PM hour
    Median delay23.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-10 05:09 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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  6. Escalation Observed

    SFO departure delays worsen: 67% late in the last hour

    What changed: late share 59% → 67%

    Of 27 departures that took off between 9:58 PM and 10:58 PM PST, 18 left at least 15 minutes late. SFO typically sees 30% 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 window9:58 PM–10:58 PM PST
    Sample27 flights, 18 late (67%)
    Comparison30% typical · US DOT on-time data, last 12 published months, departures in the 10 PM hour
    Median delay26.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-10 06:58 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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  7. De-escalation Observed

    SFO departure delays ease: 42% late in the last hour, still above normal

    What changed: late share 67% → 42%

    Of 26 departures that took off between 10:18 PM and 11:18 PM PST, 11 left at least 15 minutes late. SFO typically sees 30% 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 window10:18 PM–11:18 PM PST
    Sample26 flights, 11 late (42%)
    Comparison30% typical · US DOT on-time data, last 12 published months, departures in the 10 PM hour
    Median delay5.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-10 07:18 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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  8. Recovery Observed

    SFO departures back near normal: 7% late in the last hour

    What changed: late share 95% at worst → 7% now

    Of 15 departures that took off between 6:04 AM and 7:04 AM PST, 1 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 window6:04 AM–7:04 AM PST
    Sample15 flights, 1 late (7%)
    Comparison6% typical · US DOT on-time data, last 12 published months, departures in the 6 AM hour
    Median delay-5.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-10 15:04 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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