Of 11,856 sampled departures, 62.0% left 15 minutes or more behind schedule. Average lateness was 37.1 minutes. Sample window: Oct 23, 2025 to Jul 15, 2026.
These are historical aggregates, not live status. A departure is late at 15 minutes past schedule.
| Airline | Flights sampled | Late | Average lateness |
|---|---|---|---|
| Korean Air (KE) | 32 | 100.0% | 46.8 min |
| Star Up S.A. dba Star Peru (2I) | 22 | 95.5% | 49.9 min |
| SATA Internacional (S4) | 30 | 86.7% | 35.1 min |
| THY - Turkish Airlines (TK) | 35 | 85.7% | 34.8 min |
| British Airways (BA) | 71 | 84.5% | 25.8 min |
62.0% of this BOS 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=BOSField 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": "BOS",
"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 BOS departures that are late right now, in the JSON above.
After the trial, Starter is $24.99/mo.