Of 6,499 sampled departures, 37.5% left 15 minutes or more behind schedule. Average lateness was 15.2 minutes. Sample window: Nov 21, 2025 to Aug 28, 2026.
These are historical aggregates, not live status. A departure is late at 15 minutes past schedule.
| Airline | Flights sampled | Late | Average lateness |
|---|---|---|---|
| Lufthansa Cargo (LH) | 28 | 100.0% | 45.1 min |
| British Airways (BA) | 28 | 96.4% | 51.6 min |
| KLM (KL) | 24 | 91.7% | 41.1 min |
| Air France (AF) | 53 | 83.0% | 30.8 min |
| Boliviana de Aviacion - BoA (OB) | 41 | 82.9% | 49.2 min |
37.5% of this GRU 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=GRUField 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": "GRU",
"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 GRU departures that are late right now, in the JSON above.
After the trial, Starter is $24.99/mo.