Carrier route record
B6FLL→LAS
JetBlue Airways · Fort Lauderdale to Las Vegas
- Flights
- 834
- Period
- September 2025 to August 2026
- Share of route
- 80%
- Carriers
- 4
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with JetBlue Airways.
JetBlue on FLL to LAS lands a B, level with the national rate of 77.3%. Roughly one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 834 flights, with a median arrival 7 minutes early.
The US average over the same twelve months is 77.3%, so there is little to separate JetBlue on FLL to LAS from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
77.9%
Arrivals under 15 minutes late, of 820 completed flights
Avg delay
55 min
Across delayed arrivals only, not all flights
Cancelled
1.44%
National rate is 1.89%
Whole route
75.8%
Every carrier on FLL to LAS, 1,042 flights
These figures cover 834 flights between September 2025 and August 2026. The median arrival is 7 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Carrier by carrier
JetBlue against every carrier on FLL to LAS
JetBlue flew 834 of the 1,042 flights on FLL to LAS, most of the route. Its 77.9% on time is 2 points better than the route as a whole, which runs 75.8%. Ranked by on-time rate it is number two of four carriers on the route, where the range runs from Delta at 100.0% to Spirit at 66.5%. Three of those carriers flew fewer than 365 flights here, so treat their positions as rough.
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 Linesthin sample | 3 | 100.0% | — | 0.00% | A+ |
| JetBlue Airways (this page) | 834 | 77.9% | 55 min | 1.44% | B |
| Southwest Airlinesthin sample | 14 | 71.4% | 39 min | 0.00% | C+ |
| Spirit Airlinesthin sample | 191 | 66.5% | 61 min | 3.14% | C− |
Flight by flight
JetBlue flight numbers on FLL to LAS
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
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 20 points, against half a point between the best and worst carrier.
- 5am–8am216 flights87.3%
- 8am–11am94 flights86.2%
- 11am–2pm—
- 2pm–5pm163 flights77.8%
- 5pm–8pm199 flights72.4%
- 8pm–5am162 flights67.5%
Scale runs 60% to 95%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 87.3% of the time, against 67.5% for the overnight window. That is 20 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5am–8am window is the busiest, with 216 flights scheduled in it.
Across the year
JetBlue on FLL to LAS through the year
November is the best month on the calendar at 93.8% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. August was the busiest month here, with 93 flights.
Across the week, Wednesday is the strongest day at 85.2% on time and Sunday the weakest at 71.2%, a spread of 14 points.
Arrival by arrival
How late JetBlue on FLL to LAS runs when it is late
JetBlue on FLL to LAS often beats the schedule: 286 of 820 completed flights, 35%, arrived 15 minutes or more early. The 181 late arrivals split 65 under half an hour, 55 between 30 and 60 minutes, and 61 an hour or more.
- 15+ min early286 flights34.9%
- Within 15 min353 flights43.0%
- 15–29 min late65 flights7.9%
- 30–59 min late55 flights6.7%
- 1–2 hours late45 flights5.5%
- 2+ hours late16 flights2.0%
Scale runs 0% to 100%.
Share of 820 completed flights by arrival against schedule.
49 of 184 late departures made up the time and arrived on time, 27% of them. In the other direction, 46 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 LAS.
The worst days
Worst days for JetBlue on FLL to LAS
The latest arrival of the period was on 12 March 2026, 3 hours 48 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 |
|---|---|---|
| 12 March 2026 | 3 hours 48 minutes | Late-arriving aircraft |
| 3 August 2026 | 3 hours 29 minutes | Late-arriving aircraft |
| 17 August 2026 | 3 hours 21 minutes | Late-arriving aircraft |
| 17 December 2025 | 2 hours 56 minutes | Carrier |
| 28 February 2026 | 2 hours 55 minutes | Late-arriving aircraft |
Delay causes
Why JetBlue runs late on this route
Late-arriving aircraft accounts for 43% of the 9,993 delay minutes carriers reported here, and the remaining four split what is left.
- 43%Late-arriving aircraft
- 28%Carrier
- 26%National Airspace System
- 2%Extreme weather
- 0%Security
43% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 9,993 reported delay minutes here, that single category outweighs weather by 18 to one. The split is drawn from 9,993 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 87.3% on time here.
Cancellations sit at 1.44% against a national 1.89%, which is ordinary. Diversions add another 0.24%.
Connections and stage length
What a delay here costs
7.4% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
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.
The return leg runs 77.8% on time across 833 flights, within half a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
One caution: this is a thin sample. 834 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 JetBlue on FLL to LAS
Put together: treat all of this as provisional. 834 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 77.9% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 820 completed flights over 12 months sit behind that.
Related
Where to go next
- FLL to LAS, every carrier
- JetBlue on LAS to FLL, the return leg
- Spirit Airlines on FLL to LAS66.5%
- JetBlue Airways network-wide record
- Fort Lauderdale-Hollywood International (FLL) delay statistics
- Harry Reid International (LAS) delay statistics
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.05 million flight records
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.