Of 116 sampled YP departures, 70.7% left 15 minutes or more behind schedule. Average lateness was 23.7 minutes. Sample window: Oct 19, 2025 to Oct 7, 2026. Its published schedule has about 7 flights a week on 1 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 | 48 | 81.3% | 25.2 min |
| May 2026 | 43 | 51.2% | 20.1 min |
| Departure airport | Departures sampled | Late | Average lateness |
|---|---|---|---|
| Seoul (Incheon) (ICN) | 88 | 67.1% | 22.8 min |
| San Francisco International (SFO) | 26 | 88.5% | 28.4 min |
GET /flight_delays filtered by airline_iata=YP 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=YP
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.