Flight number record
B6 1189
JetBlue Airways · New York to San Diego
- Route
- JFK → SAN
- Departs
- 16:30
- Flights
- 359
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s B6 1189, check with JetBlue Airways.
B6 1189 lands a B−, 3 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 359 flights, with a median arrival 11 minutes early.
Key figures
On time
80.1%
Arrivals under 15 minutes late, of 342 completed flights
Avg delay
62 min
Across delayed arrivals only, not all flights
Cancelled
4.46%
National rate is 1.89%
1 hour+ late
6.7%
National rate is 8.3%
These figures cover 359 flights between September 2025 and August 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.
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Schedule
When B6 1189 flies
B6 1189 flies JFK to SAN without a single fixed slot. Its most common scheduled departure was 16:30, used on 114 of 359 flights, with 15:59 (112 flights) next.
- Departs 16:30114 flights31.8%
- Departs 15:59112 flights31.2%
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 16:30 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and B6 1189 runs 8 points better at 80.1%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Against the route
B6 1189 next to JFK to SAN
Every carrier on JFK to SAN combined arrived on time 78.0% of the time across 2,417 flights, so B6 1189 is 2 points ahead of it. JetBlue flew 724 flights on the same city pair under all its flight numbers, including this one, and those ran 83.2% on time. Across its whole network JetBlue Airways managed 71.3%, which this flight beats by 9 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| B6 1189thin sample | 359 | 80.1% | 62 min | 4.46% | B− |
| All JetBlue Airways on JFK–SAN | 724 | 83.2% | 60 min | 3.59% | B− |
| All carriers on JFK–SAN | 2,417 | 78.0% | 60 min | 2.85% | B |
| JetBlue Airways, whole network | 240,615 | 71.3% | 77 min | 3.56% | 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 Jul–Sep 2026 at 67.3%, a swing of 23 points on roughly 90 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 flights—
- Oct–Dec 202589 flights77.3%
- Jan–Mar 202690 flights90.6%
- Apr–Jun 202691 flights80.0%
- Jul–Sep 202659 flights67.3%
Scale runs 60% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, B6 1189 did best on Tuesday at 93.6% on time and worst on Saturday at 64.0%. Each day rests on about 51 flights, so a gap of 30 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late B6 1189 runs when it is late
B6 1189 often beats the schedule: 147 of 342 completed flights, 43%, arrived 15 minutes or more early. The 68 late arrivals split 21 under half an hour, 24 between 30 and 60 minutes, and 23 an hour or more.
- 15+ min early147 flights43.0%
- Within 15 min127 flights37.1%
- 15–29 min late21 flights6.1%
- 30–59 min late24 flights7.0%
- 1–2 hours late14 flights4.1%
- 2+ hours late9 flights2.6%
Scale runs 0% to 100%.
Share of 342 completed flights by arrival against schedule.
14 of 58 late departures made up the time and arrived on time, 24% of them. In the other direction, 24 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 SAN.
The worst days
Worst days for B6 1189
The latest arrival of the period was on 14 June 2026, 3 hours 16 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Three of the five worst days fell in August 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 14 June 2026 | 3 hours 16 minutes | Carrier |
| 28 May 2026 | 3 hours | Late-arriving aircraft |
| 2 August 2026 | 2 hours 58 minutes | National Airspace System |
| 6 August 2026 | 2 hours 55 minutes | National Airspace System |
| 27 August 2026 | 2 hours 48 minutes | National Airspace System |
Delay causes
Why B6 1189 runs late
National Airspace System accounts for 47% of the 4,199 delay minutes carriers reported here, and the remaining four split what is left.
- 47%National Airspace System
- 27%Carrier
- 24%Late-arriving aircraft
- 2%Extreme weather
47% 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 1,994 minutes out of 4,199, against a national NAS share of 21%. The split is drawn from 4,199 delay minutes reported on B6 1189.
Cancellations run at 4.46%, against 1.89% nationally. That is roughly one flight in twenty 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
6.7% 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 2,446 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 359 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. 359 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: 4.46% of its 359 scheduled flights did not operate. A late arrival costs about an hour, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- JFK to SAN, every carrier and departure
- SAN to JFK, the return direction
- Alaska Airlines 25 on the same route77.1%
- Delta Air Lines 685 on the same route71.9%
- Alaska Airlines 35 on the same route74.6%
- Delta Air Lines 683 on the same route78.3%
- Delta Air Lines 709 on the same route74.5%
- John F. Kennedy International (JFK) delay statistics
- San Diego International (SAN) 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
- What a cancellation rate actually tells you (and what it hides)
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.