Of 4,573 sampled W9 departures, 64.9% left 15 minutes or more behind schedule. Average lateness was 27.5 minutes. Sample window: Nov 2, 2025 to Nov 1, 2026.
These are historical aggregates, not live status. A departure is late at 15 minutes past schedule.
| Month | Departures sampled | Late | Average lateness |
|---|---|---|---|
| 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 | 615 | 83.4% | 42.6 min |
| Sep 2026 | 613 | 62.5% | 27.5 min |
| Oct 2026 | 523 | 57.2% | 25.3 min |
| Departure airport | Departures sampled | Late | Average lateness |
|---|---|---|---|
| London Luton Airport (LTN) | 3,382 | 63.0% | 26.6 min |
| London Gatwick Airport (LGW) | 1,044 | 70.0% | 29.1 min |
| Lyon Saint-Exupéry Airport (LYS) | 70 | 68.6% | 30.4 min |
| Bordeaux–Mérignac Airport (BOD) | 34 | 73.5% | 32.9 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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