Carrier route record
B6JFK→PBI
JetBlue Airways · New York to West Palm Beach
- Flights
- 1,383
- Period
- September 2025 to August 2026
- Share of route
- 67%
- Carriers
- 2
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with JetBlue Airways.
JetBlue on JFK to PBI carries a cancellation problem, not just a delay problem: 4.6% of scheduled flights never operate, against 1.9% nationally. Of the ones that do fly, about seven flights in ten arrive on time, worth a C− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 1,383 flights, with a median arrival 4 minutes early.
The national on-time rate over the same period is 77.3%, so JetBlue on JFK to PBI runs 5 points behind the country as a whole. Across a thousand flights that is about 54 extra late arrivals.
Key figures
On time
71.9%
Arrivals under 15 minutes late, of 1,313 completed flights
Avg delay
70 min
Across delayed arrivals only, not all flights
Cancelled
4.56%
National rate is 1.89%
Whole route
74.8%
Every carrier on JFK to PBI, 2,050 flights
These figures cover 1,383 flights between September 2025 and August 2026. Beyond the headline rate, 11.4% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
JetBlue against every carrier on JFK to PBI
JetBlue flew 1,383 of the 2,050 flights on JFK to PBI, most of the route. Its 71.9% on time is 3 points worse than the route as a whole, which runs 74.8%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from Delta at 80.9% to JetBlue at 71.9%.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Delta Air Lines | 667 | 80.9% | 75 min | 4.65% | B− |
| JetBlue Airways (this page) | 1,383 | 71.9% | 70 min | 4.56% | C− |
Flight by flight
JetBlue flight numbers on JFK to PBI
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Departure window
When JetBlue runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 28 points, against half a point between the best and worst carrier.
- 5am–8am278 flights90.1%
- 8am–11am139 flights75.2%
- 11am–2pm297 flights67.8%
- 2pm–5pm296 flights67.8%
- 5pm–8pm259 flights62.2%
- 8pm–5am114 flights66.4%
Scale runs 55% to 95%.
The 5pm–8pm window is where this operation falls apart: 62.2% on time, against 90.1% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 11am–2pm window is the busiest, with 297 flights scheduled in it.
Across the year
JetBlue on JFK to PBI through the year
December is the weak month at 62.3% on time, against 91.9% in May. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. April was the busiest month here, with 159 flights.
Across the week, Tuesday is the strongest day at 83.5% on time and Sunday the weakest at 63.8%, a spread of 20 points.
Arrival by arrival
How late JetBlue on JFK to PBI runs when it is late
JetBlue on JFK to PBI often beats the schedule: 421 of 1,313 completed flights, 32%, arrived 15 minutes or more early. The 369 late arrivals split 98 under half an hour, 121 between 30 and 60 minutes, and 150 an hour or more.
- 15+ min early421 flights32.1%
- Within 15 min523 flights39.8%
- 15–29 min late98 flights7.5%
- 30–59 min late121 flights9.2%
- 1–2 hours late101 flights7.7%
- 2+ hours late49 flights3.7%
Scale runs 0% to 100%.
Share of 1,313 completed flights by arrival against schedule.
91 of 377 late departures made up the time and arrived on time, 24% of them. In the other direction, 83 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 JetBlue on JFK to PBI
The latest arrival of the period was on 21 July 2026, 7 hours 55 minutes behind schedule; most of its delay minutes were filed as extreme weather. The five worst days are spread across July, December, February and November, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 21 July 2026 | 7 hours 55 minutes | Extreme weather |
| 14 December 2025 | 6 hours 56 minutes | Extreme weather |
| 14 December 2025 | 6 hours 29 minutes | Late-arriving aircraft |
| 20 February 2026 | 6 hours 7 minutes | Late-arriving aircraft |
| 9 November 2025 | 5 hours 38 minutes | Carrier |
Delay causes
Why JetBlue runs late on this route
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 26,000 reported delay minutes.
- 39%Late-arriving aircraft
- 31%Carrier
- 26%National Airspace System
- 5%Extreme weather
39% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 26,000 reported delay minutes here, that single category outweighs weather by 8 to one. The split is drawn from 25,880 reported delay minutes.
The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 90.1% on time here.
Cancellations run at 4.56%, 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 stage length
What a delay here costs
11.4% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The 1,028 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.
The return leg is a different operation and performs like one: it runs 77.5% on time across 1,384 flights, 6 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 6 points of difference.
The sample behind these figures is 1,383 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
What to do with this
Booking JetBlue on JFK to PBI
Put together: the delay figures matter less here than the 4.56% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 1,313 completed flights over 12 months sit behind that.
Related
Where to go next
- JFK to PBI, every carrier
- JetBlue on PBI to JFK, the return leg
- Delta Air Lines on JFK to PBI80.9%
- JetBlue Airways network-wide record
- John F. Kennedy International (JFK) delay statistics
- Palm Beach International (PBI) delay statistics
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
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.