Best Time to Fly BOS to BUF: On-Time Stats by Hour & Airline
Logan International → Buffalo Niagara International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 75.5% of Boston (BOS) to Buffalo (BUF) flights arrived on time (1,295 scheduled flights). That is 2.1 points below the national average of 77.6%.
Among 3 airlines, Republic Airways led with 83.5% on time and JetBlue was last with 72.2%.
Over 24 months, Saturday was the most reliable day (82% on time) and February the worst month (68%).
The cancellation rate was 3.0% (US average 1.8%).
BOS 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 |
|---|---|---|---|---|
| Republic Airways | 83.5% | 63 min | 2.6% | 305 |
| Envoy Air | 83.3% | 75 min | 0.0% | 72 |
| JetBlue | 72.2% | 71 min | 3.4% | 918 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BOS to BUF
On-time arrival % by scheduled departure hour (local time), 2,290 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | Limited data | 9 | |
| 7am–8am | 89.0% | 0.0% | 164 |
| 8am–9am | 84.5% | 2.9% | 206 |
| 9am–10am | 85.7% | 0.9% | 226 |
| 10am–11am | 87.5% | 0.0% | 72 |
| 11am–12pm | 86.1% | 0.5% | 188 |
| 12pm–1pm | 79.2% | 4.0% | 75 |
| 1pm–2pm | 80.1% | 0.0% | 141 |
| 2pm–3pm | 90.4% | 0.0% | 83 |
| 3pm–4pm | 80.2% | 2.3% | 129 |
| 4pm–5pm | 74.8% | 1.5% | 201 |
| 5pm–6pm | 61.5% | 4.5% | 155 |
| 6pm–7pm | 64.0% | 1.3% | 76 |
| 7pm–8pm | 62.1% | 3.1% | 259 |
| 8pm–9pm | 72.9% | 3.3% | 183 |
| 9pm–10pm | 83.6% | 0.0% | 73 |
| 10pm–11pm | 54.8% | 16.0% | 50 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on BOS 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) | 71.0% | -9.0 pts | 2.6% | 39 |
| Christmas & New Year (Dec 20 - Jan 3) | 61.1% | -18.9 pts | 10.0% | 60 |
| Summer peak (Jun 15 - Aug 15) | 73.0% | -7.0 pts | 3.5% | 564 |
| All other days | 80.0% | — | 1.3% | 1,627 |
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).