Of 2,964 sampled departures, 46.4% left 15 minutes or more behind schedule. Average lateness was 23.9 minutes. Sample window: Jan 16, 2026 to May 29, 2026.
These are historical aggregates, not live status. A departure is late at 15 minutes past schedule.
| Airline | Flights sampled | Late | Average lateness |
|---|---|---|---|
| Empire Airlines (EM) | 22 | 68.2% | 42.4 min |
| Air Transport International Inc. (8C) | 61 | 62.3% | 21.4 min |
| Air Canada (AC) | 32 | 56.3% | 25.8 min |
| Frontier Airlines, Inc. (F9) | 36 | 55.6% | 54.5 min |
| Southwest Airlines Co. (WN) | 1,571 | 51.1% | 25.0 min |
46.4% of this SMF 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=SMFField 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": "SMF",
"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 SMF departures that are late right now, in the JSON above.
After the trial, Starter is $24.99/mo.