Partly stale · checked FAA NAS status 223 h staleForecast cycle 75 minLightning 223 h staleWeather observations no data staleFAA surface data 4 minFAA flight data 4 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 Major Resolved Delay PHL departures

Philadelphia departure delays worsen: 71% 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
6
Create monitor View PHLFlights at PHL

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

    Philadelphia departures running late: 58% left 15+ min late in the last hour

    Of 19 departures that took off between 8:27 AM and 9:27 AM EST, 11 left at least 15 minutes late. Philadelphia typically sees 12% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 8 AM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window8:27 AM–9:27 AM EST
    Sample19 flights, 11 late (58%)
    Comparison12% typical · US DOT on-time data, last 12 published months, departures in the 8 AM hour
    Median delay18.0 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 14:27 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

    Philadelphia departure delays worsen: 90% late in the last hour

    What changed: late share 58% → 90%

    Of 21 departures that took off between 8:48 AM and 9:48 AM EST, 19 left at least 15 minutes late. Philadelphia typically sees 14% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 9 AM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window8:48 AM–9:48 AM EST
    Sample21 flights, 19 late (90%)
    Comparison14% typical · US DOT on-time data, last 12 published months, departures in the 9 AM hour
    Median delay25.0 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 14:48 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

    Philadelphia departure delays ease: 55% late in the last hour, still above normal

    What changed: late share 90% → 55%

    Of 20 departures that took off between 5:08 PM and 6:08 PM EST, 11 left at least 15 minutes late. Philadelphia typically sees 31% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 5 PM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window5:08 PM–6:08 PM EST
    Sample20 flights, 11 late (55%)
    Comparison31% typical · US DOT on-time data, last 12 published months, departures in the 5 PM hour
    Median delay66.0 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 23:08 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

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

    What changed: late share 55% → 76%

    Of 29 departures that took off between 7:13 PM and 8:13 PM EST, 22 left at least 15 minutes late. Philadelphia typically sees 30% 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 window7:13 PM–8:13 PM EST
    Sample29 flights, 22 late (76%)
    Comparison30% typical · US DOT on-time data, last 12 published months, departures in the 7 PM hour
    Median delay33.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-07 01:13 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

    Philadelphia departure delays ease: 48% late in the last hour, still above normal

    What changed: late share 76% → 48%

    Of 25 departures that took off between 8:51 PM and 9:51 PM EST, 12 left at least 15 minutes late. Philadelphia typically sees 24% 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 window8:51 PM–9:51 PM EST
    Sample25 flights, 12 late (48%)
    Comparison24% typical · US DOT on-time data, last 12 published months, departures in the 9 PM hour
    Median delay10.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-07 02:51 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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  6. Escalation Observed

    Philadelphia departure delays worsen: 71% late in the last hour

    What changed: late share 48% → 71%

    Of 14 departures that took off between 9:48 PM and 10:48 PM EST, 10 left at least 15 minutes late. Philadelphia typically sees 24% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 10 PM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window9:48 PM–10:48 PM EST
    Sample14 flights, 10 late (71%)
    Comparison24% typical · US DOT on-time data, last 12 published months, departures in the 10 PM hour
    Median delay24.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-07 03:48 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 Sat Nov 7, 5:00 AM EST: No usable measurement for 6 h; closed without a recovery report.