Of 4,229 sampled JJ departures, 8.6% left 15 minutes or more behind schedule. Average lateness was 0.8 minutes. Sample window: Oct 20, 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 | 577 | 2.4% | -2.4 min |
| Dec 2025 | 1,242 | 2.3% | 0.9 min |
| Jan 2026 | 798 | 2.8% | 1.2 min |
| Mar 2026 | 241 | 17.0% | 1.6 min |
| May 2026 | 572 | 17.3% | 5.9 min |
| Jun 2026 | 65 | 32.3% | -2.8 min |
| Jul 2026 | 128 | 29.7% | -6.2 min |
| Aug 2026 | 352 | 11.1% | -3.3 min |
| Sep 2026 | 152 | 21.1% | -2.3 min |
| Oct 2026 | 75 | 29.3% | 13.6 min |
| Departure airport | Departures sampled | Late | Average lateness |
|---|---|---|---|
| Aeroporto Internacional Guarulhos (GRU) | 2,861 | 0.0% | 0.0 min |
| Pensacola (PNS) | 255 | 0.4% | 0.0 min |
| Congonhas International Airport (CGH) | 215 | 30.7% | 11.5 min |
| John F Kennedy International (JFK) | 210 | 36.7% | -40.3 min |
| Frankfurt International Airport (FRA) | 141 | 0.0% | 0.2 min |
| Charles De Gaulle (CDG) | 136 | 0.0% | 0.0 min |
| Los Angeles International (LAX) | 108 | 50.0% | 16.7 min |
| Heathrow (LHR) | 73 | 0.0% | 0.0 min |
| Schiphol (AMS) | 70 | 94.3% | 47.3 min |
| Miami International Airport (MIA) | 40 | 92.5% | 44.5 min |
GET /flight_delays filtered by airline_iata=JJ 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=JJ
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.