Carrier route record
B6JFK→FLL
JetBlue Airways · New York to Fort Lauderdale
- Flights
- 2,293
- Period
- September 2025 to August 2026
- Share of route
- 59%
- 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 FLL carries a cancellation problem, not just a delay problem: 5.4% 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 2,293 flights, with a median arrival 2 minutes early.
The national on-time rate over the same period is 77.3%, so JetBlue on JFK to FLL runs 8 points behind the country as a whole. Across a thousand flights that is about 79 extra late arrivals.
Key figures
On time
69.4%
Arrivals under 15 minutes late, of 2,162 completed flights
Avg delay
71 min
Across delayed arrivals only, not all flights
Cancelled
5.36%
National rate is 1.89%
Whole route
71.9%
Every carrier on JFK to FLL, 3,907 flights
These figures cover 2,293 flights between September 2025 and August 2026. Beyond the headline rate, 12.2% 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 FLL
JetBlue flew 2,293 of the 3,907 flights on JFK to FLL, most of the route. Its 69.4% on time is 3 points worse than the route as a whole, which runs 71.9%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from Delta at 75.3% to JetBlue at 69.4%.
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 | 1,614 | 75.3% | 66 min | 3.90% | B− |
| JetBlue Airways (this page) | 2,293 | 69.4% | 71 min | 5.36% | C− |
Flight by flight
JetBlue flight numbers on JFK to FLL
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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 33 points, against half a point between the best and worst carrier.
- 5am–8am609 flights84.0%
- 8am–11am412 flights72.5%
- 11am–2pm325 flights73.8%
- 2pm–5pm359 flights61.2%
- 5pm–8pm358 flights57.6%
- 8pm–5am230 flights50.9%
Scale runs 40% to 90%.
The 8pm–5am window is where this operation falls apart: 50.9% on time, against 84.0% 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 5am–8am window is the busiest, with 609 flights scheduled in it.
Across the year
JetBlue on JFK to FLL through the year
December is the weak month at 52.5% on time, against 84.9% 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. March was the busiest month here, with 233 flights.
Across the week, Wednesday is the strongest day at 77.1% on time and Sunday the weakest at 57.3%, a spread of 20 points.
Arrival by arrival
How late JetBlue on JFK to FLL runs when it is late
JetBlue on JFK to FLL often beats the schedule: 680 of 2,162 completed flights, 31%, arrived 15 minutes or more early. The 662 late arrivals split 211 under half an hour, 187 between 30 and 60 minutes, and 264 an hour or more.
- 15+ min early680 flights31.5%
- Within 15 min820 flights37.9%
- 15–29 min late211 flights9.8%
- 30–59 min late187 flights8.6%
- 1–2 hours late153 flights7.1%
- 2+ hours late111 flights5.1%
Scale runs 0% to 100%.
Share of 2,162 completed flights by arrival against schedule.
144 of 661 late departures made up the time and arrived on time, 22% of them. In the other direction, 145 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 FLL.
The worst days
Worst days for JetBlue on JFK to FLL
The latest arrival of the period was on 8 August 2026, 11 hours 46 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The five worst days are spread across August, December, November and June, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 8 August 2026 | 11 hours 46 minutes | Late-arriving aircraft |
| 14 December 2025 | 9 hours 10 minutes | Extreme weather |
| 9 November 2025 | 7 hours 18 minutes | National Airspace System |
| 6 August 2026 | 6 hours 58 minutes | Carrier |
| 27 June 2026 | 6 hours 47 minutes | National Airspace System |
Delay causes
Why JetBlue runs late on this route
Late-arriving aircraft accounts for 44% of the 47,000 delay minutes carriers reported here, and the remaining four split what is left.
- 44%Late-arriving aircraft
- 28%Carrier
- 24%National Airspace System
- 3%Extreme weather
- 0%Security
44% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 47,000 reported delay minutes here, that single category outweighs weather by 13 to one. The split is drawn from 47,223 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 84.0% on time here.
Cancellations run at 5.36%, against 1.89% nationally. That is about 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
12.2% 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 1,069 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 runs 66.5% on time across 2,281 flights, within 3 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
The sample behind these figures is 2,293 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 FLL
Put together: the delay figures matter less here than the 5.36% 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. 2,162 completed flights over 12 months sit behind that.
Related
Where to go next
- JFK to FLL, every carrier
- JetBlue on FLL to JFK, the return leg
- Delta Air Lines on JFK to FLL75.3%
- JetBlue Airways network-wide record
- John F. Kennedy International (JFK) delay statistics
- Fort Lauderdale-Hollywood International (FLL) 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.