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.
https://www.goflightlabs.com/flight_delays?access_key=YOUR_ACCESS_KEY&delay=15&type=departures&dep_iata=INDField names match the live API. This flight only shows the shape. It is not a live result.
{
"success": true,
"data": [
{
"airline_iata": "AA",
"flight_iata": "AA100",
"flight_number": "100",
"dep_iata": "IND",
"dep_time": "2024-03-15 08:00",
"dep_actual": "2024-03-15 08:22",
"dep_delayed": 22,
"status": "active"
}
]
}
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.