tailodds FORECAST
Partly stale · checked FAA NAS status 224 h staleForecast cycle 1 hLightning 224 h staleWeather observations no data staleFAA surface data 6 minFAA flight data 6 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 Major Resolved Delay DCA arrivals

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

Current state
Resolved: closed without a new report (No usable measurement for 6 h; closed without a recovery report.)
Started
Latest activity
Updates
2
Create monitor View DCAFlights at DCA

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

    National arrivals running late: 54% reached the gate 15+ min late in the last hour

    Of 26 arrivals that landed between 8:06 PM and 9:06 PM EDT, 14 reached the gate at least 15 minutes late. Typically 28% of arrivals at National 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 window8:06 PM–9:06 PM EDT
    Sample26 flights, 14 late (54%)
    Comparison28% 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 (2026-10-23 01:06 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

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

    What changed: late share 54% → 75%

    Of 12 arrivals that landed between 11:35 PM and 12:35 AM EDT, 9 reached the gate at least 15 minutes late. Typically 28% of arrivals at National 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 window11:35 PM–12:35 AM EDT
    Sample12 flights, 9 late (75%)
    Comparison28% typical · US DOT on-time data, last 12 published months, all arrivals
    Median delay69.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-10-23 04:35 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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Closed Fri Oct 23, 6:59 AM EDT: No usable measurement for 6 h; closed without a recovery report.