Of 1,554 sampled LF departures, 66.6% left 15 minutes or more behind schedule. Average lateness was 53.3 minutes. Sample window: Nov 4, 2025 to Oct 28, 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 | 81 | 59.3% | 47.6 min |
| Dec 2025 | 92 | 58.7% | 55.0 min |
| Jan 2026 | 216 | 67.6% | 66.4 min |
| Mar 2026 | 639 | 68.2% | 55.6 min |
| May 2026 | 167 | 74.3% | 50.1 min |
| Jun 2026 | 23 | 78.3% | 50.2 min |
| Jul 2026 | 95 | 67.4% | 41.7 min |
| Aug 2026 | 86 | 55.8% | 45.4 min |
| Sep 2026 | 87 | 62.1% | 34.8 min |
| Oct 2026 | 68 | 63.2% | 52.7 min |
| Departure airport | Departures sampled | Late | Average lateness |
|---|---|---|---|
| Washington Dulles International Airport (IAD) | 500 | 57.0% | 39.6 min |
| Chicago O'Hare International Airport (ORD) | 318 | 77.7% | 95.5 min |
| Charlotte Douglas International Airport (CLT) | 257 | 75.1% | 48.1 min |
| Phoenix Sky Harbor International Airport (PHX) | 113 | 59.3% | 32.6 min |
| Dallas Fort Worth International Airport (DFW) | 94 | 70.2% | 37.1 min |
| Denver International Airport (DEN) | 88 | 53.4% | 39.1 min |
| Los Angeles International Airport (LAX) | 76 | 65.8% | 41.6 min |
GET /flight_delays filtered by airline_iata=LF returns the flights delayed at this moment: flight number, scheduled and actual times and minutes of delay.
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