Carrier route record
B6FLL→LAS
JetBlue Airways · Fort Lauderdale to Las Vegas
- Flights
- 781
- Period
- July 2025 to June 2026
- Share of route
- 75%
- Carriers
- 4
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with JetBlue Airways.
JetBlue on FLL to LAS lands a B, 2 points better than the national rate of 77.6%. About one flight in five arrives 15 minutes late or worse, and those flights are late by roughly 50 minutes on average. That is a workable record, not a spotless one. That rests on 781 flights, with a median arrival 7 minutes early.
The US average over the same twelve months is 77.6%, 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
79.5%
Arrivals under 15 minutes late, of 769 completed flights
Avg delay
52 min
Across delayed arrivals only, not all flights
Cancelled
1.41%
National rate is 1.81%
Whole route
77.4%
Every carrier on FLL to LAS, 1,046 flights
These figures cover 781 flights between July 2025 and June 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.
Carrier by carrier
JetBlue against every carrier on FLL to LAS
JetBlue flew 781 of the 1,046 flights on FLL to LAS, most of the route. Its 79.5% on time is 2 points better than the route as a whole, which runs 77.4%. 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 71.1%. 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) | 781 | 79.5% | 52 min | 1.41% | B |
| Southwest Airlinesthin sample | 14 | 71.4% | 39 min | 0.00% | C+ |
| Spirit Airlinesthin sample | 248 | 71.1% | 57 min | 2.42% | C |
Flight by flight
JetBlue flight numbers on FLL to LAS
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 17 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am208 flights87.3%
- 8am–11am102 flights84.3%
- 11am–2pm—
- 2pm–5pm109 flights86.5%
- 5pm–8pm199 flights72.4%
- 8pm–5am163 flights70.6%
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 70.6% for the overnight window. That is 17 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 208 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. March was the busiest month here, with 92 flights.
Across the week, Wednesday is the strongest day at 86.1% on time and Sunday the weakest at 71.8%. 14 points is a smaller lever than departure hour, but it is free.
Delay causes
Why JetBlue runs late on this route
One category carries most of the weight here. Late-arriving aircraft accounts for 42% of the 8,269 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 42%Late-arriving aircraft
- 28%National Airspace System
- 28%Carrier
- 2%Extreme weather
- 0%Security
42% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 8,269 reported delay minutes here, that single category outweighs weather by 26 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 8,269 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 1.41% against a national 1.81%, which is ordinary. Diversions add another 0.13%.
Connections and stage length
What a delay here costs
6.5% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last roughly 50 minutes, 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 76.7% on time across 781 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.
One caution: this is a thin sample. 781 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. 781 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 79.5% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 769 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 LAS71.1%
- 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 7.04 million flight records
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.