Of 1,342 sampled CM departures, 56.6% left 15 minutes or more behind schedule. Average lateness was 22.1 minutes. Sample window: Nov 4, 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 | 66 | 65.2% | 20.9 min |
| Dec 2025 | 83 | 62.7% | 28.4 min |
| Jan 2026 | 151 | 49.0% | 18.3 min |
| Mar 2026 | 397 | 45.3% | 16.6 min |
| May 2026 | 145 | 60.7% | 23.4 min |
| Jun 2026 | 55 | 56.4% | 24.8 min |
| Jul 2026 | 117 | 71.8% | 31.4 min |
| Aug 2026 | 118 | 55.1% | 25.6 min |
| Sep 2026 | 103 | 68.0% | 24.7 min |
| Oct 2026 | 105 | 68.6% | 24.6 min |
| Departure airport | Departures sampled | Late | Average lateness |
|---|---|---|---|
| John F. Kennedy International Airport (JFK) | 260 | 68.5% | 32.8 min |
| Los Angeles International Airport (LAX) | 253 | 54.9% | 16.3 min |
| Washington Dulles International Airport (IAD) | 226 | 61.1% | 26.8 min |
| Orlando International Airport (MCO) | 185 | 45.4% | 16.3 min |
| Miami International Airport (MIA) | 135 | 70.4% | 25.4 min |
| Chicago O'Hare International Airport (ORD) | 38 | 60.5% | 19.5 min |
| Denver International Airport (DEN) | 33 | 27.3% | 10.5 min |
| Fort Lauderdale Hollywood International Airport (FLL) | 32 | 46.9% | 16.2 min |
| Tampa International Airport (TPA) | 30 | 13.3% | 6.1 min |
| Boston Logan International Airport (BOS) | 28 | 53.6% | 24.8 min |
GET /flight_delays filtered by airline_iata=CM returns the flights delayed at this moment: flight number, scheduled and actual times and minutes of delay.
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