Of 4,499 sampled W9 departures, 65.5% left 15 minutes or more behind schedule. Average lateness was 27.4 minutes. Sample window: Oct 19, 2025 to Oct 17, 2026.
These are historical aggregates, not live status. A departure is late at 15 minutes past schedule.
| Month | Departures sampled | Late | Average lateness |
|---|---|---|---|
| Nov 2025 | 238 | 45.4% | 17.3 min |
| Dec 2025 | 255 | 63.1% | 23.2 min |
| Jan 2026 | 199 | 62.8% | 23.3 min |
| Feb 2026 | 218 | 39.0% | 14.1 min |
| Mar 2026 | 255 | 45.1% | 18.9 min |
| Apr 2026 | 358 | 50.3% | 17.3 min |
| May 2026 | 313 | 63.9% | 23.9 min |
| Jun 2026 | 406 | 78.3% | 33.7 min |
| Jul 2026 | 584 | 82.0% | 33.6 min |
| Aug 2026 | 613 | 83.5% | 42.7 min |
| Sep 2026 | 613 | 62.5% | 27.5 min |
| Oct 2026 | 346 | 61.0% | 23.9 min |
| Departure airport | Departures sampled | Late | Average lateness |
|---|---|---|---|
| Luton Airport (LTN) | 3,312 | 63.6% | 26.6 min |
| Gatwick (LGW) | 1,050 | 70.5% | 28.7 min |
| Lyon (LYS) | 65 | 72.3% | 31.5 min |
| Mérignac (BOD) | 32 | 75.0% | 32.8 min |
GET /flight_delays filtered by airline_iata=W9 returns the flights delayed at this moment: flight number, scheduled and actual times and minutes of delay.
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