Of 737 sampled SM departures, 77.5% left 15 minutes or more behind schedule. Average lateness was 34.5 minutes. Sample window: Nov 2, 2025 to Oct 31, 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 | 56 | 76.8% | 35.8 min |
| Dec 2025 | 55 | 74.6% | 33.5 min |
| Jan 2026 | 45 | 68.9% | 41.1 min |
| Feb 2026 | 35 | 54.3% | 22.2 min |
| Mar 2026 | 62 | 58.1% | 25.5 min |
| Apr 2026 | 63 | 58.7% | 26.3 min |
| May 2026 | 106 | 79.3% | 31.2 min |
| Jun 2026 | 29 | 100.0% | 42.0 min |
| Jul 2026 | 44 | 95.5% | 39.5 min |
| Aug 2026 | 70 | 85.7% | 33.3 min |
| Sep 2026 | 61 | 95.1% | 39.3 min |
| Oct 2026 | 111 | 82.0% | 42.6 min |
| Departure airport | Departures sampled | Late | Average lateness |
|---|---|---|---|
| Cologne Bonn Airport (CGN) | 236 | 63.6% | 29.2 min |
| Düsseldorf Airport (DUS) | 209 | 85.2% | 37.9 min |
| Frankfurt Main Airport (FRA) | 147 | 95.9% | 42.9 min |
| Hamburg Helmut Schmidt Airport (HAM) | 37 | 70.3% | 25.4 min |
| Lyon Saint-Exupéry Airport (LYS) | 20 | 70.0% | 24.9 min |
GET /flight_delays filtered by airline_iata=SM returns the flights delayed at this moment: flight number, scheduled and actual times and minutes of delay.
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