Of 2,523 sampled NH departures, 77.5% left 15 minutes or more behind schedule. Average lateness was 29.4 minutes. Sample window: Nov 3, 2025 to Oct 31, 2026. Its published schedule has about 90 flights a week on 10 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 | 99 | 71.7% | 26.6 min |
| Jul 2026 | 229 | 75.1% | 33.2 min |
| Aug 2026 | 247 | 75.7% | 35.3 min |
| Sep 2026 | 253 | 68.8% | 25.3 min |
| Oct 2026 | 262 | 69.9% | 23.0 min |
| Departure airport | Departures sampled | Late | Average lateness |
|---|---|---|---|
| Tokyo Haneda International Airport (HND) | 741 | 93.1% | 31.0 min |
| Los Angeles International Airport (LAX) | 398 | 62.8% | 28.8 min |
| Frankfurt Main Airport (FRA) | 291 | 96.6% | 30.8 min |
| John F. Kennedy International Airport (JFK) | 231 | 53.3% | 23.6 min |
| Washington Dulles International Airport (IAD) | 160 | 43.1% | 26.7 min |
| Narita International Airport (NRT) | 148 | 81.8% | 26.9 min |
| Charles de Gaulle International Airport (CDG) | 130 | 77.7% | 24.3 min |
| London Heathrow Airport (LHR) | 87 | 95.4% | 29.7 min |
| Stockholm-Arlanda Airport (ARN) | 66 | 39.4% | 18.6 min |
| Chicago O'Hare International Airport (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.
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