tailodds FORECAST
Partly stale · checked FAA NAS status 223 h staleForecast cycle 80 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 Significant Resolved Delay PHL departures

Philadelphia departures back near normal: 10% late in the last hour

Current state
Resolved at 2:17 PM EST
Started
Latest activity
Updates
2
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: 56% left 15+ min late in the last hour

    Of 16 departures that took off between 11:14 AM and 12:14 PM EST, 9 left at least 15 minutes late. Philadelphia typically sees 21% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 11 AM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window11:14 AM–12:14 PM EST
    Sample16 flights, 9 late (56%)
    Comparison21% typical · US DOT on-time data, last 12 published months, departures in the 11 AM hour
    Median delay17.0 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 17:14 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

    Philadelphia departures back near normal: 10% late in the last hour

    What changed: late share 56% at worst → 10% now

    Of 21 departures that took off between 1:17 PM and 2:17 PM EST, 2 left at least 15 minutes late. Philadelphia typically sees 22% 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. The late share has stayed at or below 30% for 31 minutes across 16 checks, each with at least 12 flights and current data.

    Evidence for this update
    Measurement window1:17 PM–2:17 PM EST
    Sample21 flights, 2 late (10%)
    Comparison22% typical · US DOT on-time data, last 12 published months, departures in the 1 PM hour
    Median delay-5.0 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 19:17 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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