Of 376 sampled LJ departures, 81.4% left 15 minutes or more behind schedule. Average lateness was 26.1 minutes. Sample window: Nov 3, 2025 to May 7, 2026. Its published schedule has about 95 flights a week on 8 routes.
These are historical aggregates, not live status. A departure is late at 15 minutes past schedule.
| Month | Departures sampled | Late | Average lateness |
|---|---|---|---|
| Nov 2025 | 174 | 82.2% | 31.0 min |
| Dec 2025 | 26 | 84.6% | 19.7 min |
| May 2026 | 176 | 80.1% | 22.1 min |
| Departure airport | Departures sampled | Late | Average lateness |
|---|---|---|---|
| Seoul (Incheon) (ICN) | 337 | 83.4% | 26.3 min |
| Narita International Airport (NRT) | 37 | 62.2% | 22.2 min |
GET /flight_delays filtered by airline_iata=LJ returns the flights delayed at this moment: flight number, scheduled and actual times and minutes of delay.
https://www.goflightlabs.com/flight_delays?access_key=YOUR_ACCESS_KEY&delay=15&type=departures&airline_iata=LJ
That URL still says YOUR_ACCESS_KEY.
A 7-day trial replaces it with a real key. After the trial, Starter is $24.99/mo.