Best Time to Fly JFK to BUF: On-Time Stats by Hour & Airline
John F. Kennedy International → Buffalo Niagara International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 74.2% of New York (JFK) to Buffalo (BUF) flights arrived on time (1,218 scheduled flights). That is 3.4 points below the national average of 77.6%.
JetBlue was the only reporting airline with regular flights on this route.
Over 24 months, Tuesday was the most reliable day (81% on time) and July the worst month (62%).
The cancellation rate was 5.2% (US average 1.8%).
JFK to BUF 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 |
|---|---|---|---|---|
| JetBlue | 74.2% | 84 min | 5.2% | 1,218 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly JFK to BUF
On-time arrival % by scheduled departure hour (local time), 3,184 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 89.0% | 5.2% | 116 |
| 7am–8am | 89.5% | 4.2% | 308 |
| 8am–9am | 87.6% | 0.9% | 106 |
| 9am–10am | 77.2% | 2.0% | 349 |
| 10am–11am | 86.3% | 2.1% | 142 |
| 11am–12pm | 88.9% | 0.0% | 36 |
| 12pm–1pm | 83.8% | 0.9% | 106 |
| 1pm–2pm | 77.3% | 3.3% | 364 |
| 2pm–3pm | 57.5% | 4.4% | 91 |
| 3pm–4pm | 75.0% | 4.2% | 71 |
| 4pm–5pm | 54.4% | 8.1% | 74 |
| 5pm–6pm | 70.9% | 3.7% | 510 |
| 6pm–7pm | 61.9% | 3.1% | 65 |
| 7pm–8pm | 63.7% | 4.2% | 119 |
| 8pm–9pm | 60.5% | 0.0% | 177 |
| 9pm–10pm | 67.6% | 2.7% | 149 |
| 10pm–11pm | 68.3% | 7.8% | 400 |
| 11pm–12am | Limited data | 1 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on JFK to BUF
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) | 73.3% | -4.4 pts | 1.3% | 76 |
| Christmas & New Year (Dec 20 - Jan 3) | 60.2% | -17.5 pts | 6.7% | 105 |
| Summer peak (Jun 15 - Aug 15) | 61.2% | -16.5 pts | 12.6% | 547 |
| All other days | 77.7% | — | 1.6% | 2,456 |
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).