tailodds FORECAST
Partly stale · checked FAA NAS status 223 h staleForecast cycle 1 hLightning 223 h staleWeather observations no data staleFAA surface data 2 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 ORD arrivals

O'Hare arrivals back near normal: 0% late in the last hour

Current state
Resolved at 5:21 AM CST
Started
Latest activity
Updates
2
Create monitor View ORDFlights at ORD

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

    O'Hare arrivals running late: 52% reached the gate 15+ min late in the last hour

    Of 21 arrivals that landed between 11:18 PM and 12:18 AM CST, 11 reached the gate at least 15 minutes late. Typically 26% of arrivals at O'Hare 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 window11:18 PM–12:18 AM CST
    Sample21 flights, 11 late (52%)
    Comparison26% 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 (2026-11-03 06:18 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

    O'Hare arrivals back near normal: 0% late in the last hour

    What changed: late share 58% at worst → 0% now

    Of 17 arrivals that landed between 4:21 AM and 5:21 AM CST, 0 reached the gate at least 15 minutes late. Typically 26% of arrivals at O'Hare 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 30% for 32 minutes across 16 checks, each with at least 12 flights and current data.

    Evidence for this update
    Measurement window4:21 AM–5:21 AM CST
    Sample17 flights, 0 late (0%)
    Comparison26% typical · US DOT on-time data, last 12 published months, all arrivals
    Median delay-20.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-03 11:21 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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