tailodds FORECAST
Partly stale · checked FAA NAS status 224 h staleForecast cycle 68 minLightning 224 h staleWeather observations no data staleFAA surface data 4 minFAA flight data 4 min

FAA NAS status is stale (224 h old). No FAA restriction can start or end on the wire until it is fresh again.

Lightning is stale (224 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 arrivals

Seattle arrival delays ease: 53% late in the last hour, still above normal

Current state
Resolved: closed without a new report (No usable measurement for 6 h; closed without a recovery report.)
Started
Latest activity
Updates
3
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 arrivals running late: 43% reached the gate 15+ min late in the last hour

    Of 30 arrivals that landed between 4:55 PM and 5:55 PM PST, 13 reached the gate at least 15 minutes late. Typically 19% of arrivals at Seattle arrive that late (US DOT on-time data, last 12 published months, all arrivals). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window4:55 PM–5:55 PM PST
    Sample30 flights, 13 late (43%)
    Comparison19% typical · US DOT on-time data, last 12 published months, all arrivals
    Median delay14.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-12 01:55 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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  2. Escalation Observed

    Seattle arrival delays worsen: 68% late in the last hour

    What changed: late share 43% → 68%

    Of 41 arrivals that landed between 8:23 PM and 9:23 PM PST, 28 reached the gate at least 15 minutes late. Typically 19% of arrivals at Seattle arrive that late (US DOT on-time data, last 12 published months, all arrivals). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window8:23 PM–9:23 PM PST
    Sample41 flights, 28 late (68%)
    Comparison19% typical · US DOT on-time data, last 12 published months, all arrivals
    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 (2026-11-12 05:23 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

    Seattle arrival delays ease: 53% late in the last hour, still above normal

    What changed: late share 68% → 53%

    Of 36 arrivals that landed between 9:24 PM and 10:24 PM PST, 19 reached the gate at least 15 minutes late. Typically 19% of arrivals at Seattle arrive that late (US DOT on-time data, last 12 published months, all arrivals). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window9:24 PM–10:24 PM PST
    Sample36 flights, 19 late (53%)
    Comparison19% typical · US DOT on-time data, last 12 published months, all arrivals
    Median delay16.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-12 06:24 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?

Closed Thu Nov 12, 5:23 AM PST: No usable measurement for 6 h; closed without a recovery report.