Of 8,774 sampled departures, 66.6% left 15 minutes or more behind schedule. Average lateness was 44.0 minutes. Sample window: Nov 12, 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 |
|---|---|---|---|
| Air Transat (TS) | 41 | 87.8% | 54.9 min |
| Southwest Airlines Co. (WN) | 648 | 85.2% | 47.6 min |
| Porter Airlines Inc. (PD) | 131 | 84.7% | 58.1 min |
| Allegiant Air LLC (G4) | 304 | 83.2% | 60.9 min |
| Mexicana (MX) | 35 | 82.9% | 52.2 min |
66.6% of this FLL 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=FLLField 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": "FLL",
"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 FLL departures that are late right now, in the JSON above.
After the trial, Starter is $24.99/mo.