Of 1,183 sampled departures, 59.7% left 15 minutes or more behind schedule. Average lateness was 21.2 minutes. Sample window: Nov 20, 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 |
|---|---|---|---|
| Cathay Pacific (CX) | 27 | 85.2% | 33.0 min |
| Air China Limited (CA) | 686 | 63.7% | 22.4 min |
| China Eastern (MU) | 61 | 55.7% | 18.3 min |
| Hainan Airlines (HU) | 206 | 53.9% | 18.5 min |
| Shenzhen Airlines (ZH) | 51 | 51.0% | 22.3 min |
59.7% of this PEK 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=PEKField 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": "PEK",
"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 PEK departures that are late right now, in the JSON above.
After the trial, Starter is $24.99/mo.