Flight number record
B6 2143
JetBlue Airways · Newark to West Palm Beach
- Route
- EWR → PBI
- Departs
- 10:30
- Flights
- 279
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s B6 2143, check with JetBlue Airways.
B6 2143 sits in the middle of the pack with a C−. About seven flights in ten arrive on time by the DOT's definition, 5 points worse than the national rate of 77.3%. The late ones land roughly 55 minutes behind schedule. That rests on 279 flights, with a median arrival 1 minute early.
The national on-time rate over the same period is 77.3%, so B6 2143 runs 5 points behind the country as a whole. Across a thousand flights that is about 50 extra late arrivals.
Key figures
On time
72.3%
Arrivals under 15 minutes late, of 267 completed flights
Avg delay
53 min
Across delayed arrivals only, not all flights
Cancelled
3.23%
National rate is 1.89%
1 hour+ late
8.6%
National rate is 8.3%
These figures cover 279 flights between September 2025 and August 2026. Beyond the headline rate, 8.6% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When B6 2143 flies
B6 2143 flies EWR to PBI without a single fixed slot. Its most common scheduled departure was 10:30, used on 50 of 279 flights, with 15:15 (28 flights) and 10:49 (28 flights) next.
- Departs 10:3050 flights17.9%
- Departs 15:1528 flights10.0%
- Departs 10:4928 flights10.0%
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 10:30 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and B6 2143 runs 12 points worse at 72.3%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
B6 2143 next to EWR to PBI
Every carrier on EWR to PBI combined arrived on time 77.5% of the time across 3,395 flights, so B6 2143 is 5 points behind it. JetBlue flew 659 flights on the same city pair under all its flight numbers, including this one, and those ran 73.8% on time. Across its whole network JetBlue Airways managed 71.3%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| B6 2143thin sample | 279 | 72.3% | 53 min | 3.23% | C− |
| All JetBlue Airways on EWR–PBI | 659 | 73.8% | 62 min | 3.49% | C− |
| All carriers on EWR–PBI | 3,395 | 77.5% | 66 min | 2.80% | B |
| JetBlue Airways, whole network | 240,615 | 71.3% | 77 min | 3.56% | C− |
Across the year
B6 2143 quarter by quarter
B6 2143 did not run the same all year. Its best quarter was Apr–Jun 2026 at 82.7% on time and its weakest Oct–Dec 2025 at 61.4%, a swing of 21 points on roughly 93 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 202586 flights61.4%
- Jan–Mar 202678 flights74.3%
- Apr–Jun 202654 flights82.7%
- Jul–Sep 202631 flights—
Scale runs 55% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, B6 2143 did best on Wednesday at 88.2% on time and worst on Sunday at 62.2%. Each day rests on about 40 flights, so a gap of 26 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late B6 2143 runs when it is late
The 74 late arrivals split 33 under half an hour, 18 between 30 and 60 minutes, and 23 an hour or more.
- 15+ min early65 flights24.3%
- Within 15 min128 flights47.9%
- 15–29 min late33 flights12.4%
- 30–59 min late18 flights6.7%
- 1–2 hours late16 flights6.0%
- 2+ hours late7 flights2.6%
Scale runs 0% to 100%.
Share of 267 completed flights by arrival against schedule.
11 of 53 late departures made up the time and arrived on time, 21% of them. In the other direction, 32 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 PBI.
The worst days
Worst days for B6 2143
The latest arrival of the period was on 13 February 2026, 4 hours 28 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 13 February 2026 | 4 hours 28 minutes | Late-arriving aircraft |
| 11 October 2025 | 4 hours 25 minutes | Late-arriving aircraft |
| 6 July 2026 | 3 hours 8 minutes | Late-arriving aircraft |
| 17 March 2026 | 2 hours 18 minutes | Late-arriving aircraft |
| 9 November 2025 | 2 hours 6 minutes | National Airspace System |
Delay causes
Why B6 2143 runs late
National Airspace System accounts for 50% of the 3,946 delay minutes carriers reported here, and the remaining four split what is left.
- 50%National Airspace System
- 33%Late-arriving aircraft
- 17%Carrier
- 1%Extreme weather
50% 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 1,965 minutes out of 3,946, against a national NAS share of 21%. The split is drawn from 3,946 delay minutes reported on B6 2143.
Cancellations run at 3.23%, against 1.89% 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
8.6% 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 roughly 55 minutes, which a normal layover absorbs.
The 1,024 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
Every one of the 279 flights under B6 2143 in the data flew EWR to PBI. 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. 279 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 2143
For a booking, the cancellation rate is the figure to plan around on B6 2143: 3.23% of its 279 scheduled flights did not operate. A late arrival costs roughly 55 minutes, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- EWR to PBI, every carrier and departure
- PBI to EWR, the return direction
- JetBlue Airways 143 on the same route74.2%
- United Airlines 1344 on the same route79.7%
- United Airlines 1771 on the same route93.0%
- Newark Liberty International (EWR) delay statistics
- Palm Beach International (PBI) 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
- Why the first flight of the morning is statistically safest
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.