Flight number record
B6 608
JetBlue Airways · Las Vegas to Fort Lauderdale
- Route
- LAS → FLL
- Departs
- 23:59
- Flights
- 324
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s B6 608, check with JetBlue Airways.
B6 608 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 about an hour behind schedule. That rests on 324 flights, with a median arrival 4 minutes early.
The national on-time rate over the same period is 77.3%, so B6 608 runs 5 points behind the country as a whole. Across a thousand flights that is about 47 extra late arrivals.
Key figures
On time
72.6%
Arrivals under 15 minutes late, of 318 completed flights
Avg delay
60 min
Across delayed arrivals only, not all flights
Cancelled
1.85%
National rate is 1.89%
1 hour+ late
10.1%
National rate is 8.3%
These figures cover 324 flights between September 2025 and August 2026. Beyond the headline rate, 10.1% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When B6 608 flies
B6 608 flies LAS to FLL without a single fixed slot. Its most common scheduled departure was 23:59, used on 115 of 324 flights, with 23:50 (37 flights) next.
- Departs 23:59115 flights35.5%
- Departs 23:5037 flights11.4%
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 23:59 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and B6 608 runs 3 points better at 72.6%. 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 608 next to LAS to FLL
Every carrier on LAS to FLL combined arrived on time 76.4% of the time across 1,042 flights, so B6 608 is 4 points behind it. JetBlue flew 833 flights on the same city pair under all its flight numbers, including this one, and those ran 77.8% 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 608thin sample | 324 | 72.6% | 60 min | 1.85% | C |
| All JetBlue Airways on LAS–FLL | 833 | 77.8% | 58 min | 2.16% | B |
| All carriers on LAS–FLL | 1,042 | 76.4% | 70 min | 2.21% | B |
| JetBlue Airways, whole network | 240,615 | 71.3% | 77 min | 3.56% | C− |
Across the year
B6 608 quarter by quarter
B6 608 did not run the same all year. Its best quarter was Jul–Sep 2025 at 90.0% on time and its weakest Jan–Mar 2026 at 55.6%, a swing of 34 points on roughly 65 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 flights90.0%
- Oct–Dec 202591 flights74.4%
- Jan–Mar 202656 flights55.6%
- Apr–Jun 202686 flights65.9%
- Jul–Sep 202661 flights86.4%
Scale runs 45% to 95%.
By weekday, B6 608 did best on Saturday at 79.5% on time and worst on Sunday at 61.7%. Each day rests on about 46 flights, so a gap of 18 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late B6 608 runs when it is late
B6 608 often beats the schedule: 83 of 318 completed flights, 26%, arrived 15 minutes or more early. The 87 late arrivals split 16 under half an hour, 39 between 30 and 60 minutes, and 32 an hour or more.
- 15+ min early83 flights26.1%
- Within 15 min148 flights46.5%
- 15–29 min late16 flights5.0%
- 30–59 min late39 flights12.3%
- 1–2 hours late25 flights7.9%
- 2+ hours late7 flights2.2%
Scale runs 0% to 100%.
Share of 318 completed flights by arrival against schedule.
17 of 95 late departures made up the time and arrived on time, 18% of them. 9 flights left on time and still arrived late.
The worst days
Worst days for B6 608
The latest arrival of the period was on 20 October 2025, 3 hours 16 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 20 October 2025 | 3 hours 16 minutes | Late-arriving aircraft |
| 13 December 2025 | 2 hours 54 minutes | Carrier |
| 5 July 2026 | 2 hours 38 minutes | Late-arriving aircraft |
| 29 June 2026 | 2 hours 24 minutes | Carrier |
| 9 November 2025 | 2 hours 14 minutes | Late-arriving aircraft |
Delay causes
Why B6 608 runs late
Late-arriving aircraft accounts for 57% of the 5,237 delay minutes carriers reported here, and the remaining four split what is left.
- 57%Late-arriving aircraft
- 32%Carrier
- 11%National Airspace System
- 1%Extreme weather
57% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 5,237 reported delay minutes here, that single category outweighs weather by 56 to one. The split is drawn from 5,237 delay minutes reported on B6 608.
Cancellations sit at 1.85% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
10.1% 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 2,173 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 324 flights under B6 608 in the data flew LAS to FLL. 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. 324 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 608
For a booking, read B6 608 as 72.6% on time with 1.85% cancelled over 324 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- LAS to FLL, every carrier and departure
- FLL to LAS, the return direction
- JetBlue Airways 1708 on the same route76.2%
- Harry Reid International (LAS) delay statistics
- Fort Lauderdale-Hollywood International (FLL) 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.