Flight number record

B6 323

JetBlue Airways · New York to Los Angeles

Route: JFK → LAX
Departs: 11:00
Flights: 302
Period: July 2025 to June 2026

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

B6 323 lands a B, 5 points better than the national rate of 77.6%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about 55 minutes on average. That is a workable record, not a spotless one. That rests on 302 flights, with a median arrival 8 minutes early.

Set against the rest of the country, B6 323's record is 5 points better than the US average of 77.6%. That gap is worth roughly 48 fewer late arrivals for every thousand flights.

On time

82.4%

Arrivals under 15 minutes late, of 295 completed flights

Avg delay

54 min

Across delayed arrivals only, not all flights

Cancelled

2.32%

National rate is 1.81%

1 hour+ late

3.7%

National rate is 8.1%

These figures cover 302 flights between July 2025 and June 2026. The median arrival is 8 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.

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 08:01 (55 flights) and 08:15 (45 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 11:0078 flights25.8%
Departs 08:0155 flights18.2%
Departs 08:1545 flights14.9%

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 11:00 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and B6 323 runs 4 points better at 82.4%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

B6 323 next to JFK to LAX

Every carrier on JFK to LAX combined arrived on time 77.6% of the time across 10,284 flights, so B6 323 is 5 points ahead of it. JetBlue flew 3,486 flights on the same city pair under all its flight numbers, including this one, and those ran 75.6% on time. Across its whole network JetBlue Airways managed 72.7%, which this flight beats by 10 points.

B6 323 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
B6 323thin sample	302	82.4%	54 min	2.32%	B
All JetBlue Airways on JFK–LAX	3,486	75.6%	69 min	2.01%	B
All carriers on JFK–LAX	10,284	77.6%	77 min	1.94%	B
JetBlue Airways, whole network	234,468	72.7%	76 min	2.56%	C

Across the year

B6 323 quarter by quarter

B6 323 did not run the same all year. Its best quarter was Jul–Sep 2025 at 94.9% on time and its weakest Oct–Dec 2025 at 73.3%, a swing of 22 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 202579 flights94.9%
Oct–Dec 202588 flights73.3%
Jan–Mar 202674 flights75.4%
Apr–Jun 202661 flights86.9%

Scale runs 65% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, B6 323 ranged from 77.8% on Sunday to 89.4% on Tuesday. With about 43 flights behind each day, a spread of 12 points is inside normal variation, so the day you fly is not worth changing for this flight.

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 2,812 reported delay minutes.

National Airspace System
40%
Carrier
23%
Extreme weather
20%
Late-arriving aircraft
17%

Extreme weather accounts for 20% 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 3.2 times the usual weather exposure. The split is drawn from 2,812 delay minutes reported on B6 323.

Cancellations sit at 2.32% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 3.7% land an hour or more behind schedule, against 8.1% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.

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 82.4% 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures