Best Time to Fly BUF to BOS: On-Time Stats by Hour & Airline
Buffalo Niagara International → Logan International
Data through July 2026 · Last updated October 18, 2026
1,295 flights were scheduled from Buffalo (BUF) to Boston (BOS) in the last 12 months, and 76.4% of those that flew arrived on time, 1.3 points below the US average of 77.6%.
Among 3 airlines, Republic Airways led with 85.5% on time and JetBlue was last with 73.3%.
Over 24 months, Saturday was the most reliable day (83% on time) and July the worst month (69%).
The cancellation rate was 2.9% (US average 1.8%).
BUF to BOS 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 | 85.5% | 74 min | 2.6% | 305 |
| Envoy Air | 76.1% | 62 min | 0.0% | 71 |
| JetBlue | 73.3% | 74 min | 3.3% | 919 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BUF to BOS
On-time arrival % by scheduled departure hour (local time), 2,291 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | Limited data | 3 | |
| 6am–7am | 90.1% | 3.7% | 188 |
| 7am–8am | 90.7% | 1.0% | 400 |
| 8am–9am | 81.5% | 4.0% | 175 |
| 9am–10am | 87.4% | 0.0% | 103 |
| 10am–11am | 81.1% | 2.2% | 271 |
| 11am–12pm | 82.2% | 1.8% | 218 |
| 12pm–1pm | 79.1% | 0.0% | 86 |
| 1pm–2pm | 67.4% | 0.7% | 137 |
| 2pm–3pm | 73.3% | 1.9% | 103 |
| 3pm–4pm | 66.1% | 4.8% | 62 |
| 4pm–5pm | 72.2% | 3.6% | 112 |
| 5pm–6pm | 72.7% | 0.0% | 143 |
| 6pm–7pm | 55.3% | 2.6% | 195 |
| 7pm–8pm | 73.3% | 2.2% | 46 |
| 8pm–9pm | Limited data | 2 | |
| 9pm–10pm | 40.9% | 6.4% | 47 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on BUF to BOS
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) | 82.0% | +2.0 pts | 0.0% | 39 |
| Christmas & New Year (Dec 20 - Jan 3) | 63.5% | -16.6 pts | 11.7% | 60 |
| Summer peak (Jun 15 - Aug 15) | 73.7% | -6.4 pts | 3.7% | 564 |
| All other days | 80.1% | — | 1.2% | 1,628 |
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).