O'Hare departure delays ease: 56% late in the last hour, still above normal
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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
O'Hare departures running late: 46% left 15+ min late in the last hour
Of 57 departures that took off between 8:58 AM and 9:58 AM CST, 26 left at least 15 minutes late. O'Hare typically sees 20% 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 window 8:58 AM–9:58 AM CST Sample 57 flights, 26 late (46%) Comparison 20% typical · US DOT on-time data, last 12 published months, departures in the 9 AM hour Median delay 11.0 min Method FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds) Source event time Ingested Published here (2026-11-14 15:58 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
O'Hare departure delays worsen: 63% late in the last hour
What changed: late share 46% → 63%
Of 38 departures that took off between 11:00 AM and 12:00 PM CST, 24 left at least 15 minutes late. O'Hare typically sees 24% 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 window 11:00 AM–12:00 PM CST Sample 38 flights, 24 late (63%) Comparison 24% typical · US DOT on-time data, last 12 published months, departures in the 11 AM hour Median delay 38.0 min Method FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds) Source event time Ingested Published here (2026-11-14 18:00 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? -
De-escalation Observed
O'Hare departure delays ease: 56% late in the last hour, still above normal
What changed: late share 63% → 56%
Of 45 departures that took off between 1:09 PM and 2:09 PM CST, 25 left at least 15 minutes late. O'Hare typically sees 24% 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.
Evidence for this update
Measurement window 1:09 PM–2:09 PM CST Sample 45 flights, 25 late (56%) Comparison 24% typical · US DOT on-time data, last 12 published months, departures in the 1 PM hour Median delay 22.0 min Method FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds) Source event time Ingested Published here (2026-11-14 20:09 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
O'Hare departure delays worsen: 67% late in the last hour
What changed: late share 56% → 67%
Of 54 departures that took off between 2:46 PM and 3:46 PM CST, 36 left at least 15 minutes late. O'Hare typically sees 29% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 3 PM hour). Measured by Tailodds from FAA flight data against airline schedules.
Evidence for this update
Measurement window 2:46 PM–3:46 PM CST Sample 54 flights, 36 late (67%) Comparison 29% typical · US DOT on-time data, last 12 published months, departures in the 3 PM hour Median delay 30.0 min Method FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds) Source event time Ingested Published here (2026-11-14 21:46 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? -
De-escalation Observed
O'Hare departure delays ease: 58% late in the last hour, still above normal
What changed: late share 67% → 58%
Of 57 departures that took off between 3:13 PM and 4:13 PM CST, 33 left at least 15 minutes late. O'Hare typically sees 29% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 3 PM hour). Measured by Tailodds from FAA flight data against airline schedules.
Evidence for this update
Measurement window 3:13 PM–4:13 PM CST Sample 57 flights, 33 late (58%) Comparison 29% typical · US DOT on-time data, last 12 published months, departures in the 3 PM hour Median delay 23.0 min Method FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds) Source event time Ingested Published here (2026-11-14 22:13 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
O'Hare departure delays worsen: 73% late in the last hour
What changed: late share 58% → 73%
Of 60 departures that took off between 5:12 PM and 6:12 PM CST, 44 left at least 15 minutes late. O'Hare typically sees 34% 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 5:12 PM–6:12 PM CST Sample 60 flights, 44 late (73%) Comparison 34% typical · US DOT on-time data, last 12 published months, departures in the 5 PM hour Median delay 62.0 min Method FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds) Source event time Ingested Published here (2026-11-15 00:12 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? -
De-escalation Observed
O'Hare departure delays ease: 56% late in the last hour, still above normal
What changed: late share 73% → 56%
Of 54 departures that took off between 5:46 PM and 6:46 PM CST, 30 left at least 15 minutes late. O'Hare typically sees 34% 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 window 5:46 PM–6:46 PM CST Sample 54 flights, 30 late (56%) Comparison 34% typical · US DOT on-time data, last 12 published months, departures in the 6 PM hour Median delay 31.0 min Method FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds) Source event time Ingested Published here (2026-11-15 00:46 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?