John F. Kennedy International (JFK) Delays and On-Time Departures
New York, NY · ranked 241st of 333 airports for on-time departures
Data through July 2026 · Last updated October 18, 2026
78.1% of the 102,683 flights scheduled to depart New York (JFK) in the last 12 months left on time, 0.7 points above the US average of 77.4%.
That ranks 241st of 333 US airports tracked on this site, with 3.5% of departures cancelled.
Among airlines at New York (JFK), Delta Air Lines left on time most often (81.3%).
Over 24 months, Tuesday was the most reliable day (83% on time) and July the worst month (68%).
Best time of day to fly out of New York (JFK)
On-time departure % by scheduled departure hour (local time), last 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 90.8% | 2.1% | 1,627 |
| 6am–7am | 90.2% | 2.0% | 13,915 |
| 7am–8am | 90.7% | 2.3% | 18,313 |
| 8am–9am | 87.9% | 1.9% | 19,048 |
| 9am–10am | 86.0% | 1.5% | 14,866 |
| 10am–11am | 82.2% | 2.1% | 6,855 |
| 11am–12pm | 84.4% | 1.5% | 15,389 |
| 12pm–1pm | 82.8% | 1.6% | 9,342 |
| 1pm–2pm | 78.3% | 2.0% | 10,389 |
| 2pm–3pm | 75.3% | 2.9% | 11,251 |
| 3pm–4pm | 74.5% | 3.0% | 15,496 |
| 4pm–5pm | 77.0% | 2.6% | 12,919 |
| 5pm–6pm | 74.3% | 3.1% | 14,990 |
| 6pm–7pm | 71.4% | 2.9% | 11,052 |
| 7pm–8pm | 69.6% | 3.6% | 13,271 |
| 8pm–9pm | 66.5% | 3.8% | 11,217 |
| 9pm–10pm | 67.9% | 4.7% | 10,553 |
| 10pm–11pm | 66.2% | 5.1% | 5,087 |
| 11pm–12am | 76.3% | 3.9% | 154 |
Airlines at JFK ranked by on-time departures
Last 12 months. Airlines with fewer than 30 departures are marked “limited data”.
| Airline | On-time departures | On-time arrivals | Cancelled | Departures |
|---|---|---|---|---|
| Delta Air Lines | 81.3% | 77.9% | 2.8% | 30,695 |
| Republic Airways | 81.3% | 78.0% | 4.6% | 15,113 |
| American Airlines | 81.2% | 78.9% | 2.8% | 15,030 |
| Alaska Airlines | 79.2% | 71.7% | 2.6% | 3,991 |
| Frontier Airlines | 76.8% | 69.1% | 2.0% | 2,249 |
| JetBlue | 72.6% | 72.1% | 4.0% | 35,450 |
| Hawaiian Airlines | 72.1% | 65.4% | 1.3% | 155 |
80%+ good 70–79.9% fair <70% poor
Best day to fly out of JFK
On-time departures by day, 24 months.
Best month to fly out of JFK
On-time departures by month, 24 months.
Holiday travel at New York (JFK)
On-time departures during holiday periods compared with all other days, last 24 months.
| Period | On-time departures | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 79.9% | -2.0 pts | 1.2% | 4,298 |
| Christmas & New Year (Dec 20 - Jan 3) | 67.1% | -14.8 pts | 3.1% | 8,726 |
| Summer peak (Jun 15 - Aug 15) | 70.3% | -11.6 pts | 6.5% | 37,564 |
| All other days | 81.9% | — | 1.8% | 165,146 |
Monthly on-time departure trend at JFK
On-time departure % each month, with the 12-month US average for reference.
Routes from New York (JFK)
Every route from JFK with its own page, by number of flights (last 12 months, on-time arrivals).