Of 1,639 sampled OU departures, 81.0% left 15 minutes or more behind schedule. Average lateness was 30.0 minutes. Sample window: Nov 2, 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 | 108 | 86.1% | 28.1 min |
| Dec 2025 | 112 | 85.7% | 26.4 min |
| Jan 2026 | 40 | 82.5% | 55.2 min |
| Feb 2026 | 44 | 86.4% | 27.5 min |
| Mar 2026 | 58 | 63.8% | 13.5 min |
| Apr 2026 | 56 | 80.4% | 26.4 min |
| May 2026 | 127 | 67.7% | 26.6 min |
| Jun 2026 | 133 | 82.7% | 34.9 min |
| Jul 2026 | 219 | 86.8% | 31.8 min |
| Aug 2026 | 254 | 81.9% | 33.4 min |
| Sep 2026 | 251 | 84.5% | 31.0 min |
| Oct 2026 | 237 | 76.0% | 25.9 min |
| Departure airport | Departures sampled | Late | Average lateness |
|---|---|---|---|
| Frankfurt Main Airport (FRA) | 476 | 89.3% | 29.6 min |
| Charles de Gaulle International Airport (CDG) | 300 | 85.7% | 28.5 min |
| Brussels Airport (BRU) | 202 | 80.2% | 30.5 min |
| Amsterdam Airport Schiphol (AMS) | 163 | 95.1% | 40.5 min |
| Copenhagen Kastrup Airport (CPH) | 135 | 63.7% | 21.7 min |
| Stockholm-Arlanda Airport (ARN) | 76 | 52.6% | 18.7 min |
| London Heathrow Airport (LHR) | 52 | 86.5% | 42.5 min |
| ZAG | 42 | 47.6% | 17.0 min |
| Hamburg Helmut Schmidt Airport (HAM) | 37 | 73.0% | 31.5 min |
| London Gatwick Airport (LGW) | 28 | 100.0% | 49.4 min |
GET /flight_delays filtered by airline_iata=OU returns the flights delayed at this moment: flight number, scheduled and actual times and minutes of delay.
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