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Observed Significant Resolved Delay SFO departures

SFO departures back near normal: 22% late in the last hour

Current state
Resolved at 7:24 PM PDT
Started
Latest activity
Updates
4
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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: 53% left 15+ min late in the last hour

    Of 32 departures that took off between 11:20 AM and 12:20 PM PDT, 17 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 window11:20 AM–12:20 PM PDT
    Sample32 flights, 17 late (53%)
    Comparison28% typical · US DOT on-time data, last 12 published months, departures in the 11 AM hour
    Median delay27.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-10-23 19:20 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: 79% late in the last hour

    What changed: late share 53% → 79%

    Of 24 departures that took off between 2:56 PM and 3:56 PM PDT, 19 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 window2:56 PM–3:56 PM PDT
    Sample24 flights, 19 late (79%)
    Comparison35% typical · US DOT on-time data, last 12 published months, departures in the 3 PM hour
    Median delay47.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-10-23 22:56 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: 48% late in the last hour, still above normal

    What changed: late share 79% → 48%

    Of 31 departures that took off between 3:53 PM and 4:53 PM PDT, 15 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 4 PM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window3:53 PM–4:53 PM PDT
    Sample31 flights, 15 late (48%)
    Comparison29% typical · US DOT on-time data, last 12 published months, departures in the 4 PM hour
    Median delay12.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-10-23 23:53 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. Recovery Observed

    SFO departures back near normal: 22% late in the last hour

    What changed: late share 88% at worst → 22% now

    Of 27 departures that took off between 6:24 PM and 7:24 PM PDT, 6 left at least 15 minutes late. SFO typically sees 24% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 6 PM hour). Measured by Tailodds from FAA flight data against airline schedules. The late share has stayed at or below 30% for 31 minutes across 16 checks, each with at least 12 flights and current data.

    Evidence for this update
    Measurement window6:24 PM–7:24 PM PDT
    Sample27 flights, 6 late (22%)
    Comparison24% typical · US DOT on-time data, last 12 published months, departures in the 6 PM hour
    Median delay3.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-10-24 02:24 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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