tailodds FORECAST
Partly stale · checked FAA NAS status 222 h staleForecast cycle 62 minLightning 222 h staleWeather observations no data staleFAA surface data 7 minFAA flight data 8 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 STL departures

St Louis departure delays worsen: 87% 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
3
Create monitor View STLFlights at STL

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

    St Louis departures running late: 79% left 15+ min late in the last hour

    Of 14 departures that took off between 8:17 PM and 9:17 PM CST, 11 left at least 15 minutes late. St Louis typically sees 39% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 8 PM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window8:17 PM–9:17 PM CST
    Sample14 flights, 11 late (79%)
    Comparison39% typical · US DOT on-time data, last 12 published months, departures in the 8 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 (2026-11-03 03:17 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?
  2. De-escalation Observed

    St Louis departure delays ease: 80% late in the last hour, still above normal

    What changed: late share 79% → 80%

    Of 15 departures that took off between 9:42 PM and 10:42 PM CST, 12 left at least 15 minutes late. St Louis typically sees 46% 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 window9:42 PM–10:42 PM CST
    Sample15 flights, 12 late (80%)
    Comparison46% typical · US DOT on-time data, last 12 published months, departures in the 10 PM hour
    Median delay26.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-03 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
    Was this useful?
  3. Escalation Observed

    St Louis departure delays worsen: 87% late in the last hour

    What changed: late share 80% → 87%

    Of 15 departures that took off between 10:02 PM and 11:02 PM CST, 13 left at least 15 minutes late. St Louis typically sees 46% 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 window10:02 PM–11:02 PM CST
    Sample15 flights, 13 late (87%)
    Comparison46% typical · US DOT on-time data, last 12 published months, departures in the 10 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 (2026-11-03 05:02 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 Tue Nov 3, 5:11 AM CST: No usable measurement for 6 h; closed without a recovery report.