JFK departure delays worsen: 80% late in the last hour
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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
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Initial Observed
JFK departures running late: 42% left 15+ min late in the last hour
Of 24 departures that took off between 11:58 AM and 12:58 PM EST, 10 left at least 15 minutes late. JFK typically sees 19% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 12 PM hour). Measured by Tailodds from FAA flight data against airline schedules.
Evidence for this update
Measurement window 11:58 AM–12:58 PM EST Sample 24 flights, 10 late (42%) Comparison 19% typical · US DOT on-time data, last 12 published months, departures in the 12 PM hour Median delay 14.0 min Method FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds) Source event time Ingested Published here (2026-11-12 17:58 UTC) Sources Tailodds measurement of FAA flight data against airline schedules Provenance observed_ops observed-ops-v1 · config 2026-10-17.1 · writer template-v1 Was this useful? -
Escalation Observed
JFK departure delays worsen: 80% late in the last hour
What changed: late share 42% → 80%
Of 15 departures that took off between 4:55 PM and 5:55 PM EST, 12 left at least 15 minutes late. JFK typically sees 26% 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 window 4:55 PM–5:55 PM EST Sample 15 flights, 12 late (80%) Comparison 26% typical · US DOT on-time data, last 12 published months, departures in the 5 PM hour Median delay 128.0 min Method FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds) Source event time Ingested Published here (2026-11-12 22:55 UTC) Sources Tailodds measurement of FAA flight data against airline schedules Provenance observed_ops observed-ops-v1 · config 2026-10-17.1 · writer template-v1 Was this useful?