tailodds FORECAST
Partly stale · checked FAA NAS status 222 h staleForecast cycle 1 hLightning 222 h staleWeather observations no data staleFAA surface data 5 minFAA flight data 5 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 Major Resolved Delay SLC departures

Salt Lake City departures back near normal: 10% late in the last hour

Current state
Resolved at 9:42 PM MST
Started
Latest activity
Updates
2
Create monitor View SLCFlights at SLC

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

    Salt Lake City departures running late: 63% left 15+ min late in the last hour

    Of 19 departures that took off between 6:09 PM and 7:09 PM MST, 12 left at least 15 minutes late. Salt Lake City typically sees 25% 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 window6:09 PM–7:09 PM MST
    Sample19 flights, 12 late (63%)
    Comparison25% typical · US DOT on-time data, last 12 published months, departures in the 6 PM hour
    Median delay31.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-02 02:09 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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  2. Recovery Observed

    Salt Lake City departures back near normal: 10% late in the last hour

    What changed: late share 75% at worst → 10% now

    Of 30 departures that took off between 8:42 PM and 9:42 PM MST, 3 left at least 15 minutes late. Salt Lake City typically sees 15% 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. The late share has stayed at or below 25% for 31 minutes across 16 checks, each with at least 12 flights and current data.

    Evidence for this update
    Measurement window8:42 PM–9:42 PM MST
    Sample30 flights, 3 late (10%)
    Comparison15% typical · US DOT on-time data, last 12 published months, departures in the 9 PM hour
    Median delay-1.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-02 04:42 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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