tailodds FORECAST
Partly stale · checked FAA NAS status 223 h staleForecast cycle 88 minLightning 223 h staleWeather observations no data staleFAA surface data 1 minFAA flight data 2 min

FAA NAS status is stale (223 h old). No FAA restriction can start or end on the wire until it is fresh again.

Lightning is stale (223 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 SEA departures

Seattle departures back near normal: 12% late in the last hour

Current state
Resolved at 6:41 PM PST
Started
Latest activity
Updates
2
Create monitor View SEAFlights at SEA

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

    Seattle departures running late: 46% left 15+ min late in the last hour

    Of 26 departures that took off between 4:33 PM and 5:33 PM PST, 12 left at least 15 minutes late. Seattle typically sees 23% 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 window4:33 PM–5:33 PM PST
    Sample26 flights, 12 late (46%)
    Comparison23% typical · US DOT on-time data, last 12 published months, departures in the 5 PM hour
    Median delay5.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-13 01:33 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

    Seattle departures back near normal: 12% late in the last hour

    What changed: late share 46% at worst → 12% now

    Of 33 departures that took off between 5:41 PM and 6:41 PM PST, 4 left at least 15 minutes late. Seattle 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 window5:41 PM–6:41 PM PST
    Sample33 flights, 4 late (12%)
    Comparison24% typical · US DOT on-time data, last 12 published months, departures in the 6 PM hour
    Median delay-6.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-13 02:41 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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