Of 673 sampled departures, 40.3% left 15 minutes or more behind schedule. Average lateness was 29.0 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 |
|---|---|---|---|
| Delta Air Lines (DL) | 68 | 66.2% | 47.5 min |
| ChallengAir (1I) | 23 | 60.9% | 19.3 min |
| United Airlines (UA) | 91 | 60.4% | 55.8 min |
| American Airlines (AA) | 103 | 57.3% | 43.0 min |
| Allegiant Air LLC (G4) | 67 | 55.2% | 40.4 min |
40.3% of this CID 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 CID departures that are late right now, in the JSON above.
After the trial, Starter is $24.99/mo.
