Best Time to Fly DEN to JFK: On-Time Stats by Hour & Airline
Denver International → John F. Kennedy International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 82.4% of Denver (DEN) to New York (JFK) flights arrived on time (1,560 scheduled flights). That is 4.7 points above the national average of 77.6%.
Delta Air Lines was the most punctual of the 3 airlines on the route at 88.5%, while JetBlue trailed at 70.8%.
April has been the best month (88% on time) and Sunday the weakest day of the week (76%).
3.1% of flights were cancelled, versus 1.8% nationally.
DEN to JFK on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Lines | 88.5% | 76 min | 2.3% | 966 |
| Frontier Airlines | 85.7% | 66 min | 0.0% | 49 |
| JetBlue | 70.8% | 110 min | 5.0% | 545 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DEN to JFK
On-time arrival % by scheduled departure hour (local time), 3,112 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 12am–1am | 75.8% | 0.0% | 124 |
| 6am–7am | 88.1% | 1.5% | 522 |
| 7am–8am | 88.8% | 1.3% | 226 |
| 8am–9am | Limited data | 1 | |
| 9am–10am | 83.3% | 0.0% | 30 |
| 10am–11am | 75.4% | 6.1% | 66 |
| 11am–12pm | 66.7% | 4.3% | 234 |
| 12pm–1pm | 81.6% | 1.6% | 766 |
| 1pm–2pm | 74.4% | 3.7% | 134 |
| 2pm–3pm | 59.0% | 8.4% | 107 |
| 3pm–4pm | Limited data | 12 | |
| 4pm–5pm | Limited data | 1 | |
| 10pm–11pm | 73.1% | 4.9% | 82 |
| 11pm–12am | 77.6% | 3.0% | 807 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on DEN to JFK
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 79.3% | -3.3 pts | 0.0% | 58 |
| Christmas & New Year (Dec 20 - Jan 3) | 70.1% | -12.5 pts | 3.5% | 142 |
| Summer peak (Jun 15 - Aug 15) | 68.7% | -13.9 pts | 6.6% | 593 |
| All other days | 82.6% | — | 1.5% | 2,319 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).