BUF to BOS flight delays & on-time performance
Nonstop flights from Buffalo Niagara International Airport to Boston Logan International Airport · 395 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at BUF or BOS right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Buffalo (BUF) to Boston (BOS) arrived on time 76% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 2.9% were cancelled, and 10% arrived an hour or more late.
- Republic Airways was the most punctual airline here (86% on time); JetBlue was the least (73%).
- Departures scheduled around 7am did best (92% on time); around 9pm did worst (41%).
- Saturday was the most reliable day to fly (82% on time) and Thursday the least (73%).
- The largest source of delay minutes was late-arriving aircraft (47%).
Which airline is most on time from BUF to BOS?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Republic AirwaysRegional airline operating flights for American Eagle, Delta Connection and United Express. | 86% | 2.6% | 11 min | 6.7% | 305 |
| Envoy AirRegional airline operating American Eagle flights. | 76% | 0.0% | 15 min | 8.5% | 71 |
| JetBlue | 73% | 3.3% | 21 min | 10.9% | 919 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am85%90 flights
- 7am92%228 flights
- 8am76%85 flights
- 9am86%73 flights
- 10am81%170 flights
- 11am79%121 flights
- 12pm81%31 flights
- 1pm68%82 flights
- 2pm75%87 flights
- 3pm67%29 flights
- 4pm68%56 flights
- 5pm67%93 flights
- 6pm55%99 flights
- 9pm41%47 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday76%4.0% cancelled
- Tuesday75%5.4% cancelled
- Wednesday78%2.9% cancelled
- Thursday73%1.0% cancelled
- Friday76%1.5% cancelled
- Saturday82%1.4% cancelled
- Sunday75%4.1% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft47%
- Air traffic control & airport congestion35%
- Airline (crew, maintenance, cleaning, fueling)18%
- Extreme weather0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather50%
- Air traffic control & airport congestion32%
- Airline (crew, maintenance, cleaning, fueling)18%
- Security0%
BUF to BOS: common questions
- How often are BUF to BOS flights on time?
- 76% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Buffalo to Boston cancelled?
- 2.9% of scheduled flights were cancelled (38 of 1,295).
- How long are typical delays?
- Across all flights the average arrival delay was 18 min (early arrivals count as zero). Flights that were late arrived 73 min behind schedule on average, and 9.8% of flights were an hour or more late.
- How long is taxi time at BUF?
- Flights on this route spent 16 min taxiing from the gate to takeoff on average.
Related routes
Return trip: BOS to BUF — 75% on time
More flights from Buffalo
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: BUF → BOS, nonstop flights by US airlines that report to the DOT. How we calculate this.