Of 2,384 sampled NH departures, 78.0% left 15 minutes or more behind schedule. Average lateness was 29.7 minutes. Sample window: Oct 16, 2025 to Oct 15, 2026. Its published schedule has about 1,057 flights a week on 101 routes.
These are historical aggregates, not live status. A departure is late at 15 minutes past schedule.
| Month | Departures sampled | Late | Average lateness |
|---|---|---|---|
| Nov 2025 | 122 | 68.0% | 20.4 min |
| Dec 2025 | 140 | 78.6% | 26.6 min |
| Jan 2026 | 76 | 65.8% | 36.3 min |
| Mar 2026 | 167 | 62.9% | 34.4 min |
| May 2026 | 897 | 88.7% | 30.5 min |
| Jun 2026 | 97 | 72.2% | 26.8 min |
| Jul 2026 | 229 | 75.1% | 33.2 min |
| Aug 2026 | 244 | 76.2% | 35.6 min |
| Sep 2026 | 253 | 68.8% | 25.3 min |
| Oct 2026 | 117 | 74.4% | 22.1 min |
| Departure airport | Departures sampled | Late | Average lateness |
|---|---|---|---|
| Haneda Airport (HND) | 741 | 93.1% | 31.0 min |
| Los Angeles International (LAX) | 359 | 63.2% | 29.7 min |
| Frankfurt International Airport (FRA) | 268 | 97.4% | 31.1 min |
| John F Kennedy International (JFK) | 215 | 54.0% | 23.7 min |
| Narita International Airport (NRT) | 148 | 81.8% | 26.9 min |
| Washington Dulles International (IAD) | 146 | 41.8% | 27.3 min |
| Charles De Gaulle (CDG) | 117 | 77.8% | 24.4 min |
| Heathrow (LHR) | 71 | 95.8% | 29.3 min |
| Arlanda (ARN) | 70 | 35.7% | 17.8 min |
| Chicago O'hare International (ORD) | 64 | 90.6% | 51.6 min |
GET /flight_delays filtered by airline_iata=NH 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=NH
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.