Of 1,197 sampled departures, 22.1% left 15 minutes or more behind schedule. Average lateness was 14.9 minutes. Sample window: Jan 16, 2026 to Mar 27, 2026.
These are historical aggregates, not live status. A departure is late at 15 minutes past schedule.
| Airline | Flights sampled | Late | Average lateness |
|---|---|---|---|
| ChallengAir (1I) | 59 | 66.1% | 36.7 min |
| American Airlines (AA) | 97 | 48.5% | 41.3 min |
| Southwest Airlines Co. (WN) | 152 | 42.1% | 23.4 min |
| United Airlines (UA) | 48 | 41.7% | 49.8 min |
| Delta Air Lines (DL) | 112 | 33.9% | 25.0 min |
22.1% of this ECP sample left 15 minutes late or more.
GET /flight_delays returns the ones that are late at this moment: airline, flight number, scheduled time, actual time and minutes of delay.
Field names match the live API. This flight only shows the shape. It is not a live result.
That URL still says YOUR_ACCESS_KEY.
A 7-day trial replaces it with a real key and returns the ECP departures that are late right now, in the JSON above.
After the trial, Starter is $24.99/mo.