tailodds FORECAST
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: 22% late in the last hour

Current state
Resolved at 2:55 PM PST
Started
Latest activity
Updates
2
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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: 55% left 15+ min late in the last hour

    Of 42 departures that took off between 12:37 PM and 1:37 PM PST, 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 window12:37 PM–1:37 PM PST
    Sample42 flights, 23 late (55%)
    Comparison29% typical · US DOT on-time data, last 12 published months, departures in the 1 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 (2026-11-11 21:37 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. Recovery Observed

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

    What changed: late share 61% at worst → 22% now

    Of 45 departures that took off between 1:55 PM and 2:55 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 2 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 window1:55 PM–2:55 PM PST
    Sample45 flights, 10 late (22%)
    Comparison32% typical · US DOT on-time data, last 12 published months, departures in the 2 PM hour
    Median delay1.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-11 22:55 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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