Flight number record
B6 101
JetBlue Airways · Fort Lauderdale to Los Angeles
- Route
- FLL → LAX
- Departs
- 18:35
- Flights
- 348
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s B6 101, check with JetBlue Airways.
B6 101 sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 7 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 348 flights, with a median arrival 1 minute late.
The national on-time rate over the same period is 77.3%, so B6 101 runs 7 points behind the country as a whole. Across a thousand flights that is about 71 extra late arrivals.
Key figures
On time
70.2%
Arrivals under 15 minutes late, of 346 completed flights
Avg delay
60 min
Across delayed arrivals only, not all flights
Cancelled
0.57%
National rate is 1.89%
1 hour+ late
9.5%
National rate is 8.3%
These figures cover 348 flights between September 2025 and August 2026. Beyond the headline rate, 9.5% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When B6 101 flies
B6 101 flies FLL to LAX without a single fixed slot. Its most common scheduled departure was 18:35, used on 54 of 348 flights.
- Departs 18:3554 flights15.5%
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 18:35 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and B6 101 runs 2 points better at 70.2%. 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 101 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 101 is 6 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%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| B6 101thin sample | 348 | 70.2% | 60 min | 0.57% | 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 101 quarter by quarter
B6 101 did not run the same all year. Its best quarter was Jul–Sep 2025 at 83.3% on time and its weakest Oct–Dec 2025 at 64.7%, a swing of 19 points on roughly 70 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 flights83.3%
- Oct–Dec 202585 flights64.7%
- Jan–Mar 202688 flights70.9%
- Apr–Jun 202683 flights69.9%
- Jul–Sep 202662 flights71.0%
Scale runs 55% to 90%.
By weekday, B6 101 did best on Tuesday at 80.4% on time and worst on Friday at 62.7%. Each day rests on about 50 flights, so a gap of 18 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late B6 101 runs when it is late
The 103 late arrivals split 40 under half an hour, 30 between 30 and 60 minutes, and 33 an hour or more.
- 15+ min early72 flights20.8%
- Within 15 min171 flights49.4%
- 15–29 min late40 flights11.6%
- 30–59 min late30 flights8.7%
- 1–2 hours late19 flights5.5%
- 2+ hours late14 flights4.0%
Scale runs 0% to 100%.
Share of 346 completed flights by arrival against schedule.
20 of 94 late departures made up the time and arrived on time, 21% of them. In the other direction, 29 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 101
The latest arrival of the period was on 14 March 2026, 5 hours 51 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). On four of the five worst days the largest share was filed as a late-arriving aircraft.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 14 March 2026 | 5 hours 51 minutes | Carrier |
| 3 March 2026 | 3 hours 16 minutes | Late-arriving aircraft |
| 20 February 2026 | 3 hours 14 minutes | Late-arriving aircraft |
| 19 November 2025 | 2 hours 59 minutes | Late-arriving aircraft |
| 8 September 2025 | 2 hours 55 minutes | Late-arriving aircraft |
Delay causes
Why B6 101 runs late
Late-arriving aircraft accounts for 50% of the 6,141 delay minutes carriers reported here, and the remaining four split what is left.
- 50%Late-arriving aircraft
- 25%Carrier
- 20%National Airspace System
- 5%Extreme weather
- 0%Security
50% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 6,141 reported delay minutes here, that single category outweighs weather by 11 to one. The split is drawn from 6,141 delay minutes reported on B6 101.
Cancellations are rare at 0.57%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
9.5% 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 348 flights under B6 101 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. 348 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 101
For a booking, B6 101 is one of the weaker ways to fly FLL to LAX: 6 points below the route as a whole. If the schedule allows, compare it with the other departures listed on the route page before settling on this one.
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 2501 on the same route69.1%
- 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.