Of 1,214 sampled departures, 26.9% left 15 minutes or more behind schedule. Average lateness was 17.1 minutes. Sample window: Nov 30, 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 |
|---|---|---|---|
| Delta Air Lines (DL) | 72 | 62.5% | 54.9 min |
| United Airlines (UA) | 131 | 58.0% | 49.6 min |
| UPS Airlines (5X) | 43 | 55.8% | 16.1 min |
| American Airlines (AA) | 33 | 48.5% | 22.8 min |
| Envoy Air Inc. (MQ) | 123 | 48.0% | 22.9 min |
26.9% of this FSD 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=FSDField 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": "FSD",
"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 FSD departures that are late right now, in the JSON above.
After the trial, Starter is $24.99/mo.