Flight number record

B6 288

JetBlue Airways · Los Angeles to Boston

Route: LAX → BOS
Departs: 08:30
Flights: 330
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s B6 288, check with JetBlue Airways.

B6 288 sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 9 points worse than the national rate of 77.6%. The late ones land a little over an hour behind schedule. That rests on 330 flights, with a median arrival 2 minutes early.

The national on-time rate over the same period is 77.6%, so B6 288 runs 9 points behind the country as a whole. Across a thousand flights that is about 91 extra late arrivals.

On time

68.5%

Arrivals under 15 minutes late, of 327 completed flights

Avg delay

68 min

Across delayed arrivals only, not all flights

Cancelled

0.91%

National rate is 1.81%

1 hour+ late

12.5%

National rate is 8.1%

These figures cover 330 flights between July 2025 and June 2026. Beyond the headline rate, 12.5% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Schedule

When B6 288 flies

B6 288 flies LAX to BOS without a single fixed slot. Its most common scheduled departure was 08:30, used on 64 of 330 flights, with 09:00 (47 flights) and 07:00 (34 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 08:3064 flights19.4%
Departs 09:0047 flights14.2%
Departs 07:0034 flights10.3%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 08:30 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and B6 288 runs 16 points worse at 68.5%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

B6 288 next to LAX to BOS

Every carrier on LAX to BOS combined arrived on time 78.4% of the time across 4,718 flights, so B6 288 is 10 points behind it. JetBlue flew 1,626 flights on the same city pair under all its flight numbers, including this one, and those ran 75.8% on time. Across its whole network JetBlue Airways managed 72.7%, which this flight trails by 4 points.

B6 288 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
B6 288thin sample	330	68.5%	68 min	0.91%	C+
All JetBlue Airways on LAX–BOS	1,626	75.8%	73 min	1.41%	B
All carriers on LAX–BOS	4,718	78.4%	81 min	1.42%	B
JetBlue Airways, whole network	234,468	72.7%	76 min	2.56%	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 83 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 202592 flights76.1%
Oct–Dec 202578 flights52.6%
Jan–Mar 202669 flights62.1%
Apr–Jun 202691 flights79.1%

Scale runs 45% to 85%. Rows with fewer than 30 flights show a dash.

By weekday, B6 288 did best on Saturday at 79.5% on time and worst on Thursday at 57.1%. Each day rests on about 47 flights, so a gap of 22 points is worth noticing but could still narrow in another year.

Delay causes

Why B6 288 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 46% of the 7,012 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Late-arriving aircraft
46%
National Airspace System
36%
Carrier
18%

46% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 7,012 reported delay minutes here, that single category outweighs weather by 46 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 7,012 delay minutes reported on B6 288.

Cancellations sit at 0.91% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 12.5% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum 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. 12.5% 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.

Where to go next

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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures