Flight number record
B6 2501
JetBlue Airways · Fort Lauderdale to Los Angeles
- Route
- FLL → LAX
- Departs
- 21:35
- Flights
- 319
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s B6 2501, check with JetBlue Airways.
B6 2501 sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 8 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 319 flights, with a median arrival 2 minutes late.
The national on-time rate over the same period is 77.3%, so B6 2501 runs 8 points behind the country as a whole. Across a thousand flights that is about 82 extra late arrivals.
Key figures
On time
69.1%
Arrivals under 15 minutes late, of 311 completed flights
Avg delay
56 min
Across delayed arrivals only, not all flights
Cancelled
2.51%
National rate is 1.89%
1 hour+ late
9.6%
National rate is 8.3%
These figures cover 319 flights between September 2025 and August 2026. Beyond the headline rate, 9.6% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When B6 2501 flies
B6 2501 flies FLL to LAX without a single fixed slot. Its most common scheduled departure was 21:35, used on 54 of 319 flights, with 20:40 (33 flights) next.
- Departs 21:3554 flights16.9%
- Departs 20:4033 flights10.3%
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 21:35 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and B6 2501 runs level with that at 69.1%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
B6 2501 next to FLL to LAX
Every carrier on FLL to LAX combined arrived on time 75.8% of the time across 2,333 flights, so B6 2501 is 7 points behind it. JetBlue flew 1,810 flights on the same city pair under all its flight numbers, including this one, and those ran 75.6% on time. Across its whole network JetBlue Airways managed 71.3%, which this flight trails by 2 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| B6 2501thin sample | 319 | 69.1% | 56 min | 2.51% | C |
| All JetBlue Airways on FLL–LAX | 1,810 | 75.6% | 55 min | 0.99% | B+ |
| All carriers on FLL–LAX | 2,333 | 75.8% | 59 min | 1.16% | B |
| JetBlue Airways, whole network | 240,615 | 71.3% | 77 min | 3.56% | C− |
Across the year
B6 2501 quarter by quarter
B6 2501 did not run the same all year. Its best quarter was Jul–Sep 2025 at 86.7% on time and its weakest Apr–Jun 2026 at 63.1%, a swing of 24 points on roughly 64 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 flights86.7%
- Oct–Dec 202566 flights69.7%
- Jan–Mar 202678 flights69.4%
- Apr–Jun 202684 flights63.1%
- Jul–Sep 202661 flights67.8%
Scale runs 55% to 90%.
By weekday, B6 2501 ranged from 66.0% on Saturday to 73.7% on Tuesday. With about 46 flights behind each day, a spread of 8 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late B6 2501 runs when it is late
The 96 late arrivals split 41 under half an hour, 25 between 30 and 60 minutes, and 30 an hour or more.
- 15+ min early73 flights23.5%
- Within 15 min142 flights45.7%
- 15–29 min late41 flights13.2%
- 30–59 min late25 flights8.0%
- 1–2 hours late19 flights6.1%
- 2+ hours late11 flights3.5%
Scale runs 0% to 100%.
Share of 311 completed flights by arrival against schedule.
24 of 100 late departures made up the time and arrived on time, 24% of them. In the other direction, 20 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 LAX.
The worst days
Worst days for B6 2501
The latest arrival of the period was on 14 December 2025, 4 hours 19 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 |
|---|---|---|
| 14 December 2025 | 4 hours 19 minutes | Late-arriving aircraft |
| 20 June 2026 | 3 hours 11 minutes | Carrier |
| 10 September 2025 | 3 hours 8 minutes | Late-arriving aircraft |
| 11 June 2026 | 2 hours 57 minutes | Late-arriving aircraft |
| 27 December 2025 | 2 hours 41 minutes | Late-arriving aircraft |
Delay causes
Why B6 2501 runs late
Late-arriving aircraft accounts for 61% of the 5,395 delay minutes carriers reported here, and the remaining four split what is left.
- 61%Late-arriving aircraft
- 25%Carrier
- 15%National Airspace System
61% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 5,395 reported delay minutes here, that single category outweighs weather by 61 to one. The split is drawn from 5,395 delay minutes reported on B6 2501.
Cancellations run at 2.51%, against 1.89% nationally. That is about one flight in 40 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
9.6% 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.
At 2,343 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 319 flights under B6 2501 in the data flew FLL to LAX. 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. 319 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 2501
For a booking, the cancellation rate is the figure to plan around on B6 2501: 2.51% of its 319 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
- FLL to LAX, every carrier and departure
- LAX to FLL, the return direction
- JetBlue Airways 2801 on the same route79.2%
- Delta Air Lines 800 on the same route86.5%
- JetBlue Airways 101 on the same route70.2%
- Fort Lauderdale-Hollywood International (FLL) delay statistics
- Los Angeles International (LAX) 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.