Partly stale · checked FAA NAS status 222 h staleForecast cycle 85 minLightning 222 h staleWeather observations no data staleFAA surface data 4 minFAA flight data 4 min

FAA NAS status is stale (222 h old). No FAA restriction can start or end on the wire until it is fresh again.

Lightning is stale (222 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 MDW departures

Midway departure delays ease: 44% 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
5
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: 57% left 15+ min late in the last hour

    Of 21 departures that took off between 12:55 PM and 1:55 PM CST, 12 left at least 15 minutes late. Midway typically sees 24% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 1 PM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window12:55 PM–1:55 PM CST
    Sample21 flights, 12 late (57%)
    Comparison24% typical · US DOT on-time data, last 12 published months, departures in the 1 PM hour
    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 (2026-11-08 19:55 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: 70% late in the last hour

    What changed: late share 57% → 70%

    Of 23 departures that took off between 1:16 PM and 2:16 PM CST, 16 left at least 15 minutes late. Midway typically sees 24% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 1 PM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window1:16 PM–2:16 PM CST
    Sample23 flights, 16 late (70%)
    Comparison24% typical · US DOT on-time data, last 12 published months, departures in the 1 PM hour
    Median delay28.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-08 20:16 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

    Midway departure delays ease: 60% late in the last hour, still above normal

    What changed: late share 70% → 60%

    Of 15 departures that took off between 6:17 PM and 7:17 PM CST, 9 left at least 15 minutes late. Midway typically sees 42% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 6 PM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window6:17 PM–7:17 PM CST
    Sample15 flights, 9 late (60%)
    Comparison42% typical · US DOT on-time data, last 12 published months, departures in the 6 PM hour
    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 (2026-11-09 01:17 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

    Midway departure delays worsen: 83% late in the last hour

    What changed: late share 60% → 83%

    Of 30 departures that took off between 6:50 PM and 7:50 PM CST, 25 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 window6:50 PM–7:50 PM CST
    Sample30 flights, 25 late (83%)
    Comparison41% typical · US DOT on-time data, last 12 published months, departures in the 7 PM hour
    Median delay28.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-09 01:50 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

    Midway departure delays ease: 44% late in the last hour, still above normal

    What changed: late share 83% → 44%

    Of 18 departures that took off between 9:09 PM and 10:09 PM CST, 8 left at least 15 minutes late. Midway typically sees 51% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 9 PM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window9:09 PM–10:09 PM CST
    Sample18 flights, 8 late (44%)
    Comparison51% typical · US DOT on-time data, last 12 published months, departures in the 9 PM hour
    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 (2026-11-09 04:09 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 Mon Nov 9, 5:08 AM CST: No usable measurement for 6 h; closed without a recovery report.