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Observed Significant Resolved Delay SFO departures

SFO departures back near normal: 25% late in the last hour

Current state
Resolved at 5:11 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: 50% left 15+ min late in the last hour

    Of 34 departures that took off between 12:49 PM and 1:49 PM PDT, 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 window12:49 PM–1:49 PM PDT
    Sample34 flights, 17 late (50%)
    Comparison29% typical · US DOT on-time data, last 12 published months, departures in the 1 PM hour
    Median delay15.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-10-26 20:49 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: 74% late in the last hour

    What changed: late share 50% → 74%

    Of 31 departures that took off between 1:09 PM and 2:09 PM PDT, 23 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 window1:09 PM–2:09 PM PDT
    Sample31 flights, 23 late (74%)
    Comparison29% typical · US DOT on-time data, last 12 published months, departures in the 1 PM hour
    Median delay39.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-10-26 21:09 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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  3. De-escalation Observed

    SFO departure delays ease: 64% late in the last hour, still above normal

    What changed: late share 74% → 64%

    Of 44 departures that took off between 1:59 PM and 2:59 PM PDT, 28 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 2 PM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window1:59 PM–2:59 PM PDT
    Sample44 flights, 28 late (64%)
    Comparison32% typical · US DOT on-time data, last 12 published months, departures in the 2 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 (2026-10-26 21:59 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: 25% late in the last hour

    What changed: late share 78% at worst → 25% now

    Of 20 departures that took off between 4:11 PM and 5:11 PM PDT, 5 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. 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 window4:11 PM–5:11 PM PDT
    Sample20 flights, 5 late (25%)
    Comparison29% typical · US DOT on-time data, last 12 published months, departures in the 4 PM hour
    Median delay-10.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-10-27 00:11 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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