Of 199 sampled GK departures, 96.0% left 15 minutes or more behind schedule. Average lateness was 34.9 minutes. Sample window: Nov 3, 2025 to May 8, 2026. Its published schedule has about 17 flights a week on 2 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 | 55 | 100.0% | 37.6 min |
| May 2026 | 144 | 94.4% | 33.9 min |
| Departure airport | Departures sampled | Late | Average lateness |
|---|---|---|---|
| Narita International Airport (NRT) | 193 | 97.9% | 35.4 min |
GET /flight_delays filtered by airline_iata=GK 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=GK
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.