Flight number record
B6 85
JetBlue Airways · Buffalo to Orlando
- Route
- BUF → MCO
- Departs
- 08:00
- Flights
- 365
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s B6 85, check with JetBlue Airways.
B6 85 lands a B, 6 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 365 flights, with a median arrival 9 minutes early.
Set against the rest of the country, B6 85's record is 6 points better than the US average of 77.3%. That gap is worth roughly 58 fewer late arrivals for every thousand flights.
Key figures
On time
83.1%
Arrivals under 15 minutes late, of 356 completed flights
Avg delay
66 min
Across delayed arrivals only, not all flights
Cancelled
2.47%
National rate is 1.89%
1 hour+ late
5.3%
National rate is 8.3%
These figures cover 365 flights between September 2025 and August 2026. The median arrival is 9 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Schedule
When B6 85 flies
B6 85 flies BUF to MCO without a single fixed slot. Its most common scheduled departure was 08:00, used on 105 of 365 flights, with 06:00 (57 flights) and 08:42 (43 flights) next.
- Departs 08:00105 flights28.8%
- Departs 06:0057 flights15.6%
- Departs 08:4243 flights11.8%
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 08:00 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and B6 85 runs level with that at 83.1%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
B6 85 next to BUF to MCO
Every carrier on BUF to MCO combined arrived on time 75.4% of the time across 1,813 flights, so B6 85 is 8 points ahead of it. JetBlue flew 562 flights on the same city pair under all its flight numbers, including this one, and those ran 78.1% on time. Across its whole network JetBlue Airways managed 71.3%, which this flight beats by 12 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| B6 85 | 365 | 83.1% | 66 min | 2.47% | B |
| All JetBlue Airways on BUF–MCO | 562 | 78.1% | 80 min | 3.38% | B− |
| All carriers on BUF–MCO | 1,813 | 75.4% | 68 min | 1.82% | B |
| JetBlue Airways, whole network | 240,615 | 71.3% | 77 min | 3.56% | C− |
Across the year
B6 85 quarter by quarter
B6 85 did not run the same all year. Its best quarter was Jul–Sep 2025 at 96.7% on time and its weakest Jul–Sep 2026 at 75.9%, a swing of 21 points on roughly 73 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 202530 flights96.7%
- Oct–Dec 202592 flights81.3%
- Jan–Mar 202690 flights77.9%
- Apr–Jun 202691 flights90.1%
- Jul–Sep 202662 flights75.9%
Scale runs 65% to 100%.
By weekday, B6 85 did best on Saturday at 90.4% on time and worst on Monday at 76.0%. Each day rests on about 52 flights, so a gap of 14 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late B6 85 runs when it is late
B6 85 often beats the schedule: 122 of 356 completed flights, 34%, arrived 15 minutes or more early. The 60 late arrivals split 25 under half an hour, 16 between 30 and 60 minutes, and 19 an hour or more.
- 15+ min early122 flights34.3%
- Within 15 min174 flights48.9%
- 15–29 min late25 flights7.0%
- 30–59 min late16 flights4.5%
- 1–2 hours late12 flights3.4%
- 2+ hours late7 flights2.0%
Scale runs 0% to 100%.
Share of 356 completed flights by arrival against schedule.
5 of 34 late departures made up the time and arrived on time, 15% of them. In the other direction, 31 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at MCO.
The worst days
Worst days for B6 85
The latest arrival of the period was on 23 December 2025, 8 hours 34 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 23 December 2025 | 8 hours 34 minutes | Late-arriving aircraft |
| 13 July 2026 | 7 hours 44 minutes | Late-arriving aircraft |
| 31 October 2025 | 3 hours 31 minutes | Carrier |
| 27 August 2026 | 3 hours 18 minutes | Carrier |
| 5 August 2026 | 2 hours 56 minutes | Late-arriving aircraft |
Delay causes
Why B6 85 runs late
Late-arriving aircraft accounts for 42% of the 3,970 delay minutes carriers reported here, and the remaining four split what is left.
- 42%Late-arriving aircraft
- 29%National Airspace System
- 26%Carrier
- 3%Extreme weather
42% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 3,970 reported delay minutes here, that single category outweighs weather by 14 to one. The split is drawn from 3,970 delay minutes reported on B6 85.
Cancellations sit at 2.47% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
5.3% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
The 1,011 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
Every one of the 365 flights under B6 85 in the data flew BUF to MCO. 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. 365 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 85
For a booking, read B6 85 as 83.1% on time with 2.47% cancelled over 365 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- BUF to MCO, every carrier and departure
- MCO to BUF, the return direction
- Orlando International (MCO) 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.