Live · checked FAA national advisories 3 minFAA NAS status 1 minForecast cycle 79 minLightning 2 minWeather observations 2 minFAA surface data 7 minFAA flight data 7 min
Observed Significant Resolved Delay SFO departures

SFO departures back near normal: 23% late in the last hour

Current state
Resolved at 11:17 AM PDT
Started
Latest activity
Updates
2
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: 58% left 15+ min late in the last hour

    Of 33 departures that took off between 8:56 AM and 9:56 AM PDT, 19 left at least 15 minutes late. SFO typically sees 18% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 9 AM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window8:56 AM–9:56 AM PDT
    Sample33 flights, 19 late (58%)
    Comparison18% typical · US DOT on-time data, last 12 published months, departures in the 9 AM hour
    Median delay17.0 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 16:56 UTC)
    SourcesTailodds measurement of FAA flight data against airline schedules
    Provenanceobserved_ops observed-ops-v1 · config 2026-10-17.1 · writer template-v1
    Was this useful?
  2. Recovery Observed

    SFO departures back near normal: 23% late in the last hour

    What changed: late share 64% at worst → 23% now

    Of 31 departures that took off between 10:16 AM and 11:16 AM PDT, 7 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 10 AM 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 window10:16 AM–11:16 AM PDT
    Sample31 flights, 7 late (23%)
    Comparison27% typical · US DOT on-time data, last 12 published months, departures in the 10 AM 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 (2026-10-27 18:17 UTC)
    SourcesTailodds measurement of FAA flight data against airline schedules
    Provenanceobserved_ops observed-ops-v1 · config 2026-10-17.1 · writer template-v1
    Was this useful?