Of 3,388 sampled FI departures, 65.6% left 15 minutes or more behind schedule. Average lateness was 27.4 minutes. Sample window: Oct 19, 2025 to Oct 17, 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 | 181 | 55.3% | 22.4 min |
| Dec 2025 | 162 | 79.6% | 32.1 min |
| Jan 2026 | 153 | 62.1% | 30.1 min |
| Feb 2026 | 77 | 61.0% | 19.0 min |
| Mar 2026 | 330 | 65.5% | 38.5 min |
| Apr 2026 | 128 | 64.1% | 27.3 min |
| May 2026 | 394 | 52.0% | 22.5 min |
| Jun 2026 | 248 | 72.6% | 28.9 min |
| Jul 2026 | 473 | 73.2% | 30.8 min |
| Aug 2026 | 508 | 72.4% | 28.0 min |
| Sep 2026 | 461 | 63.8% | 23.1 min |
| Oct 2026 | 247 | 56.3% | 21.1 min |
| Departure airport | Departures sampled | Late | Average lateness |
|---|---|---|---|
| Kastrup (CPH) | 509 | 53.8% | 20.2 min |
| John F Kennedy International (JFK) | 313 | 84.7% | 35.0 min |
| Charles De Gaulle (CDG) | 278 | 66.9% | 26.0 min |
| Washington Dulles International (IAD) | 249 | 53.8% | 24.7 min |
| Schiphol (AMS) | 218 | 83.0% | 33.1 min |
| Gardermoen (OSL) | 195 | 52.3% | 24.7 min |
| Arlanda (ARN) | 184 | 60.9% | 23.1 min |
| Gatwick (LGW) | 173 | 84.4% | 32.4 min |
| Frankfurt International Airport (FRA) | 155 | 74.2% | 25.9 min |
| Heathrow (LHR) | 143 | 79.0% | 27.8 min |
GET /flight_delays filtered by airline_iata=FI 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.
