Of 4,478 sampled W9 departures, 65.4% left 15 minutes or more behind schedule. Average lateness was 27.2 minutes. Sample window: Oct 16, 2025 to Oct 16, 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 | 305 | 59.3% | 22.3 min |
| Departure airport | Departures sampled | Late | Average lateness |
|---|---|---|---|
| Luton Airport (LTN) | 3,291 | 63.5% | 26.5 min |
| Gatwick (LGW) | 1,052 | 70.4% | 28.3 min |
| Lyon (LYS) | 64 | 71.9% | 31.0 min |
| Mérignac (BOD) | 31 | 74.2% | 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.
https://www.goflightlabs.com/flight_delays?access_key=YOUR_ACCESS_KEY&delay=15&type=departures&airline_iata=W9
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.