Flight number record

B6 323

JetBlue Airways · New York to Los Angeles

Route: JFK → LAX
Departs: 11:00
Flights: 302
Period: September 2025 to August 2026

Historical statistics for September 2025 to August 2026, not live status. For today’s B6 323, check with JetBlue Airways.

B6 323 sits in the middle of the pack with a B. Close to three flights in four arrive on time by the DOT's definition, 2 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 302 flights, with a median arrival 6 minutes early.

On time

75.3%

Arrivals under 15 minutes late, of 295 completed flights

Avg delay

57 min

Across delayed arrivals only, not all flights

Cancelled

2.32%

National rate is 1.89%

1 hour+ late

5.4%

National rate is 8.3%

These figures cover 302 flights between September 2025 and August 2026. The median arrival is 6 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 323 flies

B6 323 flies JFK to LAX without a single fixed slot. Its most common scheduled departure was 11:00, used on 78 of 302 flights, with 08:15 (45 flights) and 10:59 (37 flights) next.

Departs 11:0078 flights25.8%
Departs 08:1545 flights14.9%
Departs 10:5937 flights12.3%

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 11:00 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and B6 323 runs 3 points worse at 75.3%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

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Against the route

B6 323 next to JFK to LAX

Every carrier on JFK to LAX combined arrived on time 75.4% of the time across 10,285 flights, so B6 323 is about level with it. JetBlue flew 3,480 flights on the same city pair under all its flight numbers, including this one, and those ran 72.5% on time. Across its whole network JetBlue Airways managed 71.3%, which this flight beats by 4 points.

B6 323 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
B6 323thin sample	302	75.3%	57 min	2.32%	B
All JetBlue Airways on JFK–LAX	3,480	72.5%	73 min	3.19%	C−
All carriers on JFK–LAX	10,285	75.4%	78 min	2.78%	B
JetBlue Airways, whole network	240,615	71.3%	77 min	3.56%	C−

Across the year

B6 323 quarter by quarter

B6 323 did not run the same all year. Its best quarter was Apr–Jun 2026 at 86.9% on time and its weakest Jul–Sep 2026 at 52.8%, a swing of 34 points on roughly 76 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 202526 flights—
Oct–Dec 202588 flights73.3%
Jan–Mar 202674 flights75.4%
Apr–Jun 202661 flights86.9%
Jul–Sep 202653 flights52.8%

Scale runs 45% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, B6 323 did best on Tuesday at 82.6% on time and worst on Thursday at 68.9%. 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 323 runs when it is late

B6 323 often beats the schedule: 108 of 295 completed flights, 37%, arrived 15 minutes or more early. The 73 late arrivals split 27 under half an hour, 30 between 30 and 60 minutes, and 16 an hour or more.

15+ min early108 flights36.6%
Within 15 min114 flights38.6%
15–29 min late27 flights9.2%
30–59 min late30 flights10.2%
1–2 hours late9 flights3.1%
2+ hours late7 flights2.4%

Scale runs 0% to 100%.

Share of 295 completed flights by arrival against schedule.

Time lost at the gate mostly stays lost. Of 41 departures that left 15 minutes late or more, only 4 made it up before arrival. In the other direction, 36 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 LAX.

The worst days

Worst days for B6 323

The latest arrival of the period was on 14 December 2025, 10 hours 10 minutes behind schedule; most of its delay minutes were filed as extreme weather. The five worst days are spread across December, July, February and August, with no single month standing out.

The latest arrivals of B6 323 in the period
Date	Arrived late by	Largest filed cause
14 December 2025	10 hours 10 minutes	Extreme weather
22 July 2026	4 hours 9 minutes	Carrier
16 February 2026	3 hours 29 minutes	Late-arriving aircraft
10 August 2026	3 hours 22 minutes	National Airspace System
23 August 2026	3 hours 13 minutes	Carrier

Delay causes

Why B6 323 runs late

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 4,168 reported delay minutes.

National Airspace System
39%
Carrier
31%
Late-arriving aircraft
16%
Extreme weather
13%

Extreme weather accounts for 13% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.2 times the usual weather exposure. The split is drawn from 4,168 delay minutes reported on B6 323.

Cancellations sit at 2.32% against a national 1.89%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

5.4% 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.

At 2,475 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 302 flights under B6 323 in the data flew JFK to LAX. 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. 302 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 323

For a booking, read B6 323 as 75.3% on time with 2.32% cancelled over 302 flights. Those are rates from the past twelve months, not a forecast for any particular day.

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, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures