Partly stale · checked FAA NAS status 224 h staleForecast cycle 81 minLightning 224 h staleWeather observations no data staleFAA surface data 7 minFAA flight data 7 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 arrivals back near normal: 7% late in the last hour

Current state
Resolved at 6:31 AM PST
Started
Latest activity
Updates
8
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: 52% reached the gate 15+ min late in the last hour

    Of 33 arrivals that landed between 4:29 PM and 5:29 PM PST, 17 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 window4:29 PM–5:29 PM PST
    Sample33 flights, 17 late (52%)
    Comparison19% typical · US DOT on-time data, last 12 published months, all arrivals
    Median delay15.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-10 01:29 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: 67% late in the last hour

    What changed: late share 52% → 67%

    Of 30 arrivals that landed between 5:03 PM and 6:03 PM PST, 20 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 window5:03 PM–6:03 PM PST
    Sample30 flights, 20 late (67%)
    Comparison19% typical · US DOT on-time data, last 12 published months, all arrivals
    Median delay29.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-10 02:03 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: 48% late in the last hour, still above normal

    What changed: late share 67% → 48%

    Of 29 arrivals that landed between 5:23 PM and 6:23 PM PST, 14 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 window5:23 PM–6:23 PM PST
    Sample29 flights, 14 late (48%)
    Comparison19% typical · US DOT on-time data, last 12 published months, all arrivals
    Median delay12.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-10 02:23 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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  4. Escalation Observed

    Seattle arrival delays worsen: 62% late in the last hour

    What changed: late share 48% → 62%

    Of 32 arrivals that landed between 7:13 PM and 8:13 PM PST, 20 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 window7:13 PM–8:13 PM PST
    Sample32 flights, 20 late (62%)
    Comparison19% typical · US DOT on-time data, last 12 published months, all arrivals
    Median delay21.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-10 04:13 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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  5. De-escalation Observed

    Seattle arrival delays ease: 47% late in the last hour, still above normal

    What changed: late share 62% → 47%

    Of 34 arrivals that landed between 7:42 PM and 8:42 PM PST, 16 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 window7:42 PM–8:42 PM PST
    Sample34 flights, 16 late (47%)
    Comparison19% typical · US DOT on-time data, last 12 published months, all arrivals
    Median delay14.2 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-10 04:42 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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  6. Escalation Observed

    Seattle arrival delays worsen: 62% late in the last hour

    What changed: late share 47% → 62%

    Of 37 arrivals that landed between 8:58 PM and 9:58 PM PST, 23 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 window8:58 PM–9:58 PM PST
    Sample37 flights, 23 late (62%)
    Comparison19% typical · US DOT on-time data, last 12 published months, all arrivals
    Median delay27.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-10 05:58 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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  7. De-escalation Observed

    Seattle arrival delays ease: 52% late in the last hour, still above normal

    What changed: late share 62% → 52%

    Of 21 arrivals that landed between 10:49 PM and 11:49 PM PST, 11 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 window10:49 PM–11:49 PM PST
    Sample21 flights, 11 late (52%)
    Comparison19% typical · US DOT on-time data, last 12 published months, all arrivals
    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 (2026-11-10 07:49 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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  8. Recovery Observed

    Seattle arrivals back near normal: 7% late in the last hour

    What changed: late share 88% at worst → 7% now

    Of 15 arrivals that landed between 5:31 AM and 6:31 AM PST, 1 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. The late share has stayed at or below 29% for 31 minutes across 16 checks, each with at least 12 flights and current data.

    Evidence for this update
    Measurement window5:31 AM–6:31 AM PST
    Sample15 flights, 1 late (7%)
    Comparison19% typical · US DOT on-time data, last 12 published months, all arrivals
    Median delay-7.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-10 14:31 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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