Of 6,499 sampled AY departures, 49.9% left 15 minutes or more behind schedule. Average lateness was 19.8 minutes. Sample window: Oct 19, 2025 to Oct 17, 2026. Its published schedule has about 830 flights a week on 62 routes.
These are historical aggregates, not live status. A departure is late at 15 minutes past schedule.
| Month | Departures sampled | Late | Average lateness |
|---|---|---|---|
| Nov 2025 | 405 | 49.4% | 16.5 min |
| Dec 2025 | 367 | 55.3% | 19.6 min |
| Jan 2026 | 327 | 73.7% | 37.2 min |
| Feb 2026 | 314 | 51.9% | 20.0 min |
| Mar 2026 | 478 | 35.6% | 11.8 min |
| Apr 2026 | 437 | 38.4% | 15.5 min |
| May 2026 | 798 | 40.5% | 15.4 min |
| Jun 2026 | 478 | 58.2% | 26.6 min |
| Jul 2026 | 779 | 61.2% | 23.6 min |
| Aug 2026 | 795 | 53.7% | 21.2 min |
| Sep 2026 | 740 | 43.9% | 17.7 min |
| Oct 2026 | 444 | 45.3% | 17.6 min |
| Departure airport | Departures sampled | Late | Average lateness |
|---|---|---|---|
| Arlanda (ARN) | 1,197 | 31.0% | 12.8 min |
| Kastrup (CPH) | 817 | 48.8% | 18.9 min |
| Gardermoen (OSL) | 558 | 53.4% | 20.1 min |
| Landvetter (GOT) | 524 | 28.1% | 12.5 min |
| Düsseldorf International Airport (DUS) | 430 | 38.6% | 16.0 min |
| Charles De Gaulle (CDG) | 427 | 80.1% | 28.1 min |
| Hamburg Airport (HAM) | 366 | 33.3% | 13.8 min |
| Helsinki-vantaa (HEL) | 343 | 35.9% | 13.2 min |
| Brussels Airport (BRU) | 330 | 45.2% | 17.9 min |
| Schiphol (AMS) | 245 | 84.1% | 34.4 min |
GET /flight_delays filtered by airline_iata=AY returns the flights delayed at this moment: flight number, scheduled and actual times and minutes of delay.
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.