tailodds FORECAST
Partly stale · checked FAA NAS status 225 h staleForecast cycle 2 hLightning 225 h staleWeather observations no data staleFAA surface data 1 minFAA flight data <1 min

FAA NAS status is stale (225 h old). No FAA restriction can start or end on the wire until it is fresh again.

Lightning is stale (225 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 MDW departures

Midway departure delays worsen: 76% 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 MDWFlights at MDW

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

    Midway departures running late: 46% left 15+ min late in the last hour

    Of 13 departures that took off between 10:15 AM and 11:15 AM CDT, 6 left at least 15 minutes late. Midway typically sees 16% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 10 AM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window10:15 AM–11:15 AM CDT
    Sample13 flights, 6 late (46%)
    Comparison16% typical · US DOT on-time data, last 12 published months, departures in the 10 AM hour
    Median delay13.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-10-22 16:15 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

    Midway departure delays worsen: 76% late in the last hour

    What changed: late share 46% → 76%

    Of 17 departures that took off between 7:19 PM and 8:19 PM CDT, 13 left at least 15 minutes late. Midway typically sees 41% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 7 PM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window7:19 PM–8:19 PM CDT
    Sample17 flights, 13 late (76%)
    Comparison41% typical · US DOT on-time data, last 12 published months, departures in the 7 PM hour
    Median delay30.0 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 01:19 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, 5:31 AM CDT: No usable measurement for 6 h; closed without a recovery report.