Of 475 sampled KU departures, 85.9% left 15 minutes or more behind schedule. Average lateness was 48.8 minutes. Sample window: Oct 16, 2025 to Oct 15, 2026. Its published schedule has about 22 flights a week on 3 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 | 46 | 78.3% | 63.7 min |
| Dec 2025 | 51 | 78.4% | 52.6 min |
| Feb 2026 | 24 | 66.7% | 27.0 min |
| Jun 2026 | 21 | 90.5% | 43.0 min |
| Jul 2026 | 62 | 85.5% | 71.0 min |
| Aug 2026 | 90 | 95.6% | 38.3 min |
| Sep 2026 | 98 | 94.9% | 53.7 min |
| Oct 2026 | 45 | 73.3% | 25.7 min |
| Departure airport | Departures sampled | Late | Average lateness |
|---|---|---|---|
| Heathrow (LHR) | 116 | 90.5% | 36.7 min |
| Charles De Gaulle (CDG) | 94 | 95.7% | 56.4 min |
| Frankfurt International Airport (FRA) | 79 | 79.8% | 51.3 min |
| John F Kennedy International (JFK) | 67 | 67.2% | 48.1 min |
| Manchester Airport (MAN) | 56 | 89.3% | 50.7 min |
| Schiphol (AMS) | 31 | 100.0% | 76.0 min |
GET /flight_delays filtered by airline_iata=KU 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=KU
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.