Of 5,843 sampled departures, 67.5% left 15 minutes or more behind schedule. Average lateness was 23.2 minutes. Sample window: Nov 4, 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 |
|---|---|---|---|
| Lufthansa Cargo (LH) | 25 | 100.0% | 37.8 min |
| Thai Smile (WE) | 27 | 92.6% | 25.8 min |
| Korean Air (KE) | 1,226 | 91.0% | 28.2 min |
| Asiana (OZ) | 705 | 90.6% | 28.5 min |
| EVA Air (BR) | 48 | 85.4% | 28.5 min |
67.5% of this ICN 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=ICNField 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": "ICN",
"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 ICN departures that are late right now, in the JSON above.
After the trial, Starter is $24.99/mo.