Of 4,726 sampled departures, 41.3% left 15 minutes or more behind schedule. Average lateness was 24.9 minutes. Sample window: Oct 19, 2025 to May 7, 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) | 57 | 80.7% | 35.1 min |
| Southwest Airlines Co. (WN) | 882 | 62.6% | 33.1 min |
| Spirit Airlines (NK) | 46 | 60.9% | 62.3 min |
| Envoy Air Inc. (MQ) | 43 | 55.8% | 24.3 min |
| Mesa Airlines, Inc. (YV) | 30 | 53.3% | 29.0 min |
41.3% of this IND 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 IND departures that are late right now, in the JSON above.
After the trial, Starter is $24.99/mo.
