Flight number record
B6 288
JetBlue Airways · Los Angeles to Boston
- Route
- LAX → BOS
- Departs
- 08:00
- Flights
- 330
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s B6 288, check with JetBlue Airways.
B6 288 draws a C. About one flight in three arrives at least 15 minutes late, and the typical late arrival is about an hour behind schedule. Build slack into anything you connect to. That rests on 330 flights, with a median arrival 1 minute early.
The national on-time rate over the same period is 77.3%, so B6 288 runs 11 points behind the country as a whole. Across a thousand flights that is about 107 extra late arrivals.
Key figures
On time
66.6%
Arrivals under 15 minutes late, of 326 completed flights
Avg delay
68 min
Across delayed arrivals only, not all flights
Cancelled
1.21%
National rate is 1.89%
1 hour+ late
12.3%
National rate is 8.3%
These figures cover 330 flights between September 2025 and August 2026. Beyond the headline rate, 12.3% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When B6 288 flies
B6 288 flies LAX to BOS without a single fixed slot. Its most common scheduled departure was 08:00, used on 56 of 330 flights, with 09:00 (47 flights) and 07:00 (34 flights) next.
- Departs 08:0056 flights17.0%
- Departs 09:0047 flights14.2%
- Departs 07:0034 flights10.3%
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 288 runs 17 points worse at 66.6%. 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 288 next to LAX to BOS
Every carrier on LAX to BOS combined arrived on time 76.2% of the time across 4,797 flights, so B6 288 is 10 points behind it. JetBlue flew 1,642 flights on the same city pair under all its flight numbers, including this one, and those ran 74.0% on time. Across its whole network JetBlue Airways managed 71.3%, which this flight trails by 5 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| B6 288thin sample | 330 | 66.6% | 68 min | 1.21% | C |
| All JetBlue Airways on LAX–BOS | 1,642 | 74.0% | 67 min | 2.07% | C |
| All carriers on LAX–BOS | 4,797 | 76.2% | 80 min | 1.81% | B |
| JetBlue Airways, whole network | 240,615 | 71.3% | 77 min | 3.56% | C− |
Across the year
B6 288 quarter by quarter
B6 288 did not run the same all year. Its best quarter was Apr–Jun 2026 at 79.1% on time and its weakest Oct–Dec 2025 at 52.6%, a swing of 26 points on roughly 66 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 flights53.3%
- Oct–Dec 202578 flights52.6%
- Jan–Mar 202669 flights62.1%
- Apr–Jun 202691 flights79.1%
- Jul–Sep 202662 flights77.0%
Scale runs 45% to 85%.
By weekday, B6 288 did best on Saturday at 77.3% on time and worst on Thursday at 55.1%. Each day rests on about 47 flights, so a gap of 22 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late B6 288 runs when it is late
B6 288 often beats the schedule: 91 of 326 completed flights, 28%, arrived 15 minutes or more early. The 109 late arrivals split 39 under half an hour, 30 between 30 and 60 minutes, and 40 an hour or more.
- 15+ min early91 flights27.9%
- Within 15 min126 flights38.7%
- 15–29 min late39 flights12.0%
- 30–59 min late30 flights9.2%
- 1–2 hours late24 flights7.4%
- 2+ hours late16 flights4.9%
Scale runs 0% to 100%.
Share of 326 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 95 departures that left 15 minutes late or more, only 11 made it up before arrival. In the other direction, 25 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 BOS.
The worst days
Worst days for B6 288
The latest arrival of the period was on 6 March 2026, 5 hours 17 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 |
|---|---|---|
| 6 March 2026 | 5 hours 17 minutes | Late-arriving aircraft |
| 18 December 2025 | 4 hours 51 minutes | Carrier |
| 20 July 2026 | 4 hours 47 minutes | Late-arriving aircraft |
| 14 October 2025 | 4 hours 16 minutes | Late-arriving aircraft |
| 30 October 2025 | 4 hours 13 minutes | National Airspace System |
Delay causes
Why B6 288 runs late
Late-arriving aircraft accounts for 48% of the 7,381 delay minutes carriers reported here, and the remaining four split what is left.
- 48%Late-arriving aircraft
- 36%National Airspace System
- 17%Carrier
48% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 7,381 reported delay minutes here, that single category outweighs weather by 48 to one. The split is drawn from 7,381 delay minutes reported on B6 288.
Cancellations sit at 1.21% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
12.3% 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.
At 2,611 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.
Every one of the 330 flights under B6 288 in the data flew LAX to BOS. 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. 330 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 288
For a booking, B6 288 is a flight to put a long connection behind. 12.3% of its completed flights arrived an hour or more late, which a short layover will not absorb. If the onward flight is on a separate ticket, the risk sits with you.
Related
Where to go next
- LAX to BOS, every carrier and departure
- BOS to LAX, the return direction
- Delta Air Lines 639 on the same route81.6%
- United Airlines 1783 on the same route82.0%
- American Airlines 12 on the same route78.8%
- American Airlines 2453 on the same route78.3%
- United Airlines 2210 on the same route90.7%
- Delta Air Lines 437 on the same route67.5%
- Los Angeles International (LAX) delay statistics
- 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.