Flight number record

B6 1189

JetBlue Airways · New York to San Diego

Route: JFK → SAN
Departs: 15:59
Flights: 362
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s B6 1189, check with JetBlue Airways.

B6 1189 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 an hour on average. That is a workable record, not a spotless one. That rests on 362 flights, with a median arrival 11 minutes early.

Set against the rest of the country, B6 1189's record is 5 points better than the US average of 77.6%. That gap is worth roughly 52 fewer late arrivals for every thousand flights.

On time

82.8%

Arrivals under 15 minutes late, of 348 completed flights

Avg delay

58 min

Across delayed arrivals only, not all flights

Cancelled

3.59%

National rate is 1.81%

1 hour+ late

4.9%

National rate is 8.1%

These figures cover 362 flights between July 2025 and June 2026. The median arrival is 11 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 1189 flies

B6 1189 flies JFK to SAN without a single fixed slot. Its most common scheduled departure was 15:59, used on 115 of 362 flights, with 16:30 (114 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 15:59115 flights31.8%
Departs 16:30114 flights31.5%

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 15:59 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and B6 1189 runs 10 points better at 82.8%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

B6 1189 next to JFK to SAN

Every carrier on JFK to SAN combined arrived on time 79.1% of the time across 2,413 flights, so B6 1189 is 4 points ahead of it. JetBlue flew 727 flights on the same city pair under all its flight numbers, including this one, and those ran 85.7% on time. Across its whole network JetBlue Airways managed 72.7%, which this flight beats by 10 points.

B6 1189 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
B6 1189thin sample	362	82.8%	58 min	3.59%	B−
All JetBlue Airways on JFK–SAN	727	85.7%	61 min	2.48%	A
All carriers on JFK–SAN	2,413	79.1%	58 min	2.40%	B
JetBlue Airways, whole network	234,468	72.7%	76 min	2.56%	C

Across the year

B6 1189 quarter by quarter

B6 1189 did not run the same all year. Its best quarter was Jan–Mar 2026 at 90.6% on time and its weakest Oct–Dec 2025 at 77.3%, a swing of 13 points on roughly 91 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 flights83.5%
Oct–Dec 202589 flights77.3%
Jan–Mar 202690 flights90.6%
Apr–Jun 202691 flights80.0%

Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, B6 1189 did best on Tuesday at 92.0% on time and worst on Saturday at 70.6%. Each day rests on about 52 flights, so a gap of 21 points is worth noticing but could still narrow in another year.

Delay causes

Why B6 1189 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 3,475 reported delay minutes.

National Airspace System
39%
Carrier
31%
Late-arriving aircraft
29%
Extreme weather
1%

39% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 1,362 minutes out of 3,475, against a national NAS share of 21%. The split is drawn from 3,475 delay minutes reported on B6 1189.

Cancellations run at 3.59%, against 1.81% nationally. That is about one flight in 30 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 4.9% 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 2,446 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 362 flights under B6 1189 in the data flew JFK to SAN. 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. 362 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 1189

For a booking, the cancellation rate is the figure to plan around on B6 1189: 3.59% of its 362 scheduled flights did not operate. A late arrival costs about an hour, but a cancellation costs the day, so leave a later option open.

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