Flight number record
B6 715
JetBlue Airways · Boston to Buffalo
- Route
- BOS → BUF
- Departs
- 22:10
- Flights
- 300
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s B6 715, check with JetBlue Airways.
B6 715 draws a D−. Roughly one flight in three arrives at least 15 minutes late, and the typical late arrival is a little over an hour behind schedule. Build slack into anything you connect to. That rests on 300 flights, with a median arrival right on schedule.
The national on-time rate over the same period is 77.3%, so B6 715 runs 14 points behind the country as a whole. Across a thousand flights that is about 143 extra late arrivals.
Key figures
On time
63.0%
Arrivals under 15 minutes late, of 284 completed flights
Avg delay
72 min
Across delayed arrivals only, not all flights
Cancelled
5.33%
National rate is 1.89%
1 hour+ late
17.3%
National rate is 8.3%
These figures cover 300 flights between September 2025 and August 2026. Beyond the headline rate, 17.3% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When B6 715 flies
B6 715 flies BOS to BUF without a single fixed slot. Its most common scheduled departure was 22:10, used on 53 of 300 flights, with 12:50 (32 flights) next.
- Departs 22:1053 flights17.7%
- Departs 12:5032 flights10.7%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 22:10 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and B6 715 runs 7 points worse at 63.0%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
B6 715 next to BOS to BUF
Every carrier on BOS to BUF combined arrived on time 73.3% of the time across 1,349 flights, so B6 715 is 10 points behind it. JetBlue flew 887 flights on the same city pair under all its flight numbers, including this one, and those ran 68.2% on time. Across its whole network JetBlue Airways managed 71.3%, which this flight trails by 8 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| B6 715thin sample | 300 | 63.0% | 72 min | 5.33% | D− |
| All JetBlue Airways on BOS–BUF | 887 | 68.2% | 76 min | 3.95% | C− |
| All carriers on BOS–BUF | 1,349 | 73.3% | 75 min | 3.56% | C− |
| JetBlue Airways, whole network | 240,615 | 71.3% | 77 min | 3.56% | C− |
Across the year
B6 715 quarter by quarter
B6 715 did not run the same all year. Its best quarter was Apr–Jun 2026 at 69.1% on time and its weakest Jul–Sep 2026 at 51.9%, a swing of 17 points on roughly 75 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202527 flights—
- Oct–Dec 202583 flights65.4%
- Jan–Mar 202670 flights67.2%
- Apr–Jun 202658 flights69.1%
- Jul–Sep 202662 flights51.9%
Scale runs 45% to 75%. Rows with fewer than 30 flights show a dash.
By weekday, B6 715 did best on Tuesday at 67.5% on time and worst on Thursday at 53.5%. Each day rests on about 43 flights, so a gap of 14 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late B6 715 runs when it is late
The 105 late arrivals split 23 under half an hour, 33 between 30 and 60 minutes, and 49 an hour or more.
- 15+ min early66 flights23.2%
- Within 15 min113 flights39.8%
- 15–29 min late23 flights8.1%
- 30–59 min late33 flights11.6%
- 1–2 hours late35 flights12.3%
- 2+ hours late14 flights4.9%
Scale runs 0% to 100%.
Share of 284 completed flights by arrival against schedule.
15 of 113 late departures made up the time and arrived on time, 13% of them. 7 flights left on time and still arrived late.
The worst days
Worst days for B6 715
The latest arrival of the period was on 10 October 2025, 5 hours 6 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 10 October 2025 | 5 hours 6 minutes | Late-arriving aircraft |
| 5 December 2025 | 5 hours | Late-arriving aircraft |
| 3 August 2026 | 4 hours 19 minutes | Late-arriving aircraft |
| 14 January 2026 | 4 hours 12 minutes | Late-arriving aircraft |
| 30 December 2025 | 3 hours 31 minutes | Late-arriving aircraft |
Delay causes
Why B6 715 runs late
Late-arriving aircraft accounts for 68% of the 7,535 delay minutes carriers reported here, and the remaining four split what is left.
- 68%Late-arriving aircraft
- 22%Carrier
- 9%National Airspace System
- 1%Extreme weather
68% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 7,535 reported delay minutes here, that single category outweighs weather by 68 to one. The split is drawn from 7,535 delay minutes reported on B6 715.
Cancellations run at 5.33%, against 1.89% nationally. That is about one flight in twenty cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and routes
What a delay on this flight costs
17.3% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
Every one of the 300 flights under B6 715 in the data flew BOS to BUF. The number was not reused on any other city pair, which makes this a clean record of one route.
One caution: this is a thin sample. 300 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking B6 715
For a booking, the cancellation rate is the figure to plan around on B6 715: 5.33% of its 300 scheduled flights did not operate. A late arrival costs a little over an hour, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- BOS to BUF, every carrier and departure
- BUF to BOS, the return direction
- Boston Logan International (BOS) delay statistics
- JetBlue Airways on-time record
- Every JetBlue Airways flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
A flight number here means JetBlue Airways’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.