Partly stale · checked FAA NAS status 224 h staleForecast cycle 78 minLightning 224 h staleWeather observations no data staleFAA surface data 4 minFAA flight data 3 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: 50% 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
7
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: 48% reached the gate 15+ min late in the last hour

    Of 27 arrivals that landed between 4:40 PM and 5:40 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 window4:40 PM–5:40 PM PST
    Sample27 flights, 13 late (48%)
    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 (2026-11-06 01:40 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. Escalation Observed

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

    What changed: late share 48% → 62%

    Of 24 arrivals that landed between 5:12 PM and 6:12 PM PST, 15 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 window5:12 PM–6:12 PM PST
    Sample24 flights, 15 late (62%)
    Comparison19% typical · US DOT on-time data, last 12 published months, all arrivals
    Median delay20.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-06 02:12 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?
  3. De-escalation Observed

    Seattle arrival delays ease: 48% late in the last hour, still above normal

    What changed: late share 62% → 48%

    Of 29 arrivals that landed between 6:14 PM and 7:14 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 window6:14 PM–7:14 PM PST
    Sample29 flights, 14 late (48%)
    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 (2026-11-06 03:14 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?
  4. Escalation Observed

    Seattle arrival delays worsen: 75% late in the last hour

    What changed: late share 48% → 75%

    Of 36 arrivals that landed between 7:07 PM and 8:07 PM PST, 27 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 window7:07 PM–8:07 PM PST
    Sample36 flights, 27 late (75%)
    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 (2026-11-06 04:07 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?
  5. De-escalation Observed

    Seattle arrival delays ease: 55% late in the last hour, still above normal

    What changed: late share 75% → 55%

    Of 33 arrivals that landed between 9:04 PM and 10:04 PM PST, 18 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 window9:04 PM–10:04 PM PST
    Sample33 flights, 18 late (55%)
    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 (2026-11-06 06:04 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?
  6. Escalation Observed

    Seattle arrival delays worsen: 69% late in the last hour

    What changed: late share 55% → 69%

    Of 36 arrivals that landed between 9:46 PM and 10:46 PM PST, 25 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 window9:46 PM–10:46 PM PST
    Sample36 flights, 25 late (69%)
    Comparison19% typical · US DOT on-time data, last 12 published months, all arrivals
    Median delay39.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-06 06:46 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?
  7. De-escalation Observed

    Seattle arrival delays ease: 50% late in the last hour, still above normal

    What changed: late share 69% → 50%

    Of 18 arrivals that landed between 10:25 PM and 11:25 PM PST, 9 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 window10:25 PM–11:25 PM PST
    Sample18 flights, 9 late (50%)
    Comparison19% typical · US DOT on-time data, last 12 published months, all arrivals
    Median delay19.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-06 07:25 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 Fri Nov 6, 5:40 AM PST: No usable measurement for 6 h; closed without a recovery report.