Of 2,877 sampled WS departures, 69.6% left 15 minutes or more behind schedule. Average lateness was 34.1 minutes. Sample window: Nov 3, 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 | 53 | 77.4% | 37.3 min |
| Dec 2025 | 43 | 93.0% | 55.6 min |
| Jan 2026 | 231 | 64.5% | 38.2 min |
| Mar 2026 | 627 | 66.4% | 39.8 min |
| May 2026 | 339 | 55.5% | 26.1 min |
| Jun 2026 | 151 | 81.5% | 34.9 min |
| Jul 2026 | 286 | 81.1% | 36.4 min |
| Aug 2026 | 638 | 64.6% | 29.7 min |
| Sep 2026 | 246 | 81.3% | 35.6 min |
| Oct 2026 | 243 | 76.1% | 29.1 min |
| Departure airport | Departures sampled | Late | Average lateness |
|---|---|---|---|
| Los Angeles International Airport (LAX) | 716 | 69.0% | 29.2 min |
| YYC | 281 | 47.7% | 18.9 min |
| Charles de Gaulle International Airport (CDG) | 200 | 94.5% | 40.4 min |
| John F. Kennedy International Airport (JFK) | 200 | 89.5% | 52.3 min |
| Toronto Pearson International Airport (YYZ) | 150 | 47.3% | 16.9 min |
| Harry Reid International Airport (LAS) | 134 | 65.7% | 31.2 min |
| Phoenix Sky Harbor International Airport (PHX) | 118 | 63.6% | 40.2 min |
| Edinburgh Airport (EDI) | 107 | 98.1% | 47.8 min |
| Palm Springs International Airport (PSP) | 93 | 58.1% | 37.0 min |
| Orlando International Airport (MCO) | 87 | 64.4% | 50.2 min |
GET /flight_delays filtered by airline_iata=WS returns the flights delayed at this moment: flight number, scheduled and actual times and minutes of delay.
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