Of 466 sampled UO departures, 54.3% left 15 minutes or more behind schedule. Average lateness was 18.3 minutes. Sample window: Nov 3, 2025 to Oct 31, 2026. Its published schedule has about 78 flights a week on 6 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 | 86 | 64.0% | 20.5 min |
| May 2026 | 161 | 52.8% | 18.1 min |
| Aug 2026 | 46 | 47.8% | 18.8 min |
| Oct 2026 | 154 | 52.0% | 17.1 min |
| Departure airport | Departures sampled | Late | Average lateness |
|---|---|---|---|
| Hong Kong International Airport (HKG) | 336 | 51.5% | 17.1 min |
| Incheon International Airport (ICN) | 50 | 46.0% | 16.0 min |
| Narita International Airport (NRT) | 36 | 77.8% | 24.3 min |
| Suvarnabhumi Airport (BKK) | 22 | 81.8% | 32.1 min |
GET /flight_delays filtered by airline_iata=UO returns the flights delayed at this moment: flight number, scheduled and actual times and minutes of delay.
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