Of 505 sampled Z0 departures, 88.5% left 15 minutes or more behind schedule. Average lateness was 42.4 minutes. Sample window: Nov 4, 2025 to Oct 31, 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 | 33 | 72.7% | 33.4 min |
| Dec 2025 | 54 | 85.2% | 54.7 min |
| Mar 2026 | 53 | 94.3% | 40.4 min |
| Apr 2026 | 30 | 66.7% | 18.7 min |
| May 2026 | 20 | 85.0% | 22.7 min |
| Jun 2026 | 32 | 100.0% | 33.7 min |
| Jul 2026 | 63 | 93.7% | 40.5 min |
| Aug 2026 | 70 | 97.1% | 40.0 min |
| Sep 2026 | 64 | 93.8% | 60.2 min |
| Oct 2026 | 48 | 87.5% | 32.3 min |
| Departure airport | Departures sampled | Late | Average lateness |
|---|---|---|---|
| London Gatwick Airport (LGW) | 310 | 86.1% | 40.7 min |
| John F. Kennedy International Airport (JFK) | 153 | 95.4% | 48.8 min |
| Manchester Airport (MAN) | 21 | 76.2% | 36.8 min |
GET /flight_delays filtered by airline_iata=Z0 returns the flights delayed at this moment: flight number, scheduled and actual times and minutes of delay.
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