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Observed Major Resolved Delay SFO departures

SFO departures back near normal: 14% late in the last hour

Current state
Resolved at 9:38 PM PDT
Started
Latest activity
Updates
3
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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: 62% left 15+ min late in the last hour

    Of 32 departures that took off between 4:43 PM and 5:43 PM PDT, 20 left at least 15 minutes late. SFO typically sees 31% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 5 PM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window4:43 PM–5:43 PM PDT
    Sample32 flights, 20 late (62%)
    Comparison31% typical · US DOT on-time data, last 12 published months, departures in the 5 PM hour
    Median delay20.0 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 00:44 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 62% → 74%

    Of 34 departures that took off between 5:14 PM and 6:14 PM PDT, 25 left at least 15 minutes late. SFO typically sees 31% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 5 PM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window5:14 PM–6:14 PM PDT
    Sample34 flights, 25 late (74%)
    Comparison31% typical · US DOT on-time data, last 12 published months, departures in the 5 PM hour
    Median delay30.0 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 01:14 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. Recovery Observed

    SFO departures back near normal: 14% late in the last hour

    What changed: late share 75% at worst → 14% now

    Of 43 departures that took off between 8:38 PM and 9:38 PM PDT, 6 left at least 15 minutes late. SFO typically sees 27% 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. 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 window8:38 PM–9:38 PM PDT
    Sample43 flights, 6 late (14%)
    Comparison27% typical · US DOT on-time data, last 12 published months, departures in the 9 PM hour
    Median delay-2.0 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 04:38 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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