Of 554 sampled QS departures, 69.5% left 15 minutes or more behind schedule. Average lateness was 33.6 minutes. Sample window: Oct 17, 2025 to Oct 15, 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 | 44 | 70.5% | 26.0 min |
| Dec 2025 | 50 | 66.0% | 25.2 min |
| Jan 2026 | 25 | 76.0% | 27.5 min |
| Mar 2026 | 43 | 67.4% | 21.2 min |
| Apr 2026 | 43 | 69.8% | 18.7 min |
| May 2026 | 95 | 62.1% | 25.9 min |
| Jun 2026 | 26 | 61.5% | 45.6 min |
| Jul 2026 | 62 | 85.5% | 55.9 min |
| Aug 2026 | 40 | 70.0% | 49.3 min |
| Sep 2026 | 44 | 70.5% | 29.9 min |
| Oct 2026 | 52 | 69.2% | 48.0 min |
| Departure airport | Departures sampled | Late | Average lateness |
|---|---|---|---|
| Charles De Gaulle (CDG) | 228 | 87.3% | 32.2 min |
| Prague Vaclav Havel Airport (PRG) | 82 | 69.5% | 44.2 min |
| Brussels Airport (BRU) | 78 | 60.3% | 22.6 min |
GET /flight_delays filtered by airline_iata=QS 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=QS
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.