Of 351 sampled KQ departures, 88.0% left 15 minutes or more behind schedule. Average lateness was 43.2 minutes. Sample window: Oct 18, 2025 to Oct 15, 2026. Its published schedule has about 62 flights a week on 7 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 | 33 | 90.9% | 40.8 min |
| Dec 2025 | 40 | 82.5% | 39.4 min |
| Jan 2026 | 25 | 80.0% | 43.7 min |
| Mar 2026 | 25 | 96.0% | 50.4 min |
| Apr 2026 | 22 | 81.8% | 35.8 min |
| May 2026 | 38 | 81.6% | 34.4 min |
| Jul 2026 | 26 | 96.2% | 30.9 min |
| Aug 2026 | 30 | 90.0% | 34.4 min |
| Sep 2026 | 56 | 89.3% | 58.8 min |
| Oct 2026 | 25 | 100.0% | 44.6 min |
| Departure airport | Departures sampled | Late | Average lateness |
|---|---|---|---|
| John F Kennedy International (JFK) | 163 | 89.6% | 39.0 min |
| Charles De Gaulle (CDG) | 57 | 96.5% | 43.5 min |
| Gatwick (LGW) | 40 | 97.5% | 42.1 min |
| Schiphol (AMS) | 38 | 68.4% | 43.7 min |
| Heathrow (LHR) | 38 | 86.8% | 45.4 min |
GET /flight_delays filtered by airline_iata=KQ 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=KQ
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.