Route reliability record
FLL→LAS
Fort Lauderdale to Las Vegas
- Flights
- 1,042
- Period
- September 2025 to August 2026
- Distance
- 2,173 mi
- Carriers
- 4
This route sits in the middle of the pack with a B. Close to three flights in four arrive on time by the DOT's definition, 2 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 1,042 FLL to LAS flights, with a median arrival 5 minutes early.
Best time to fly FLL to LAS: a 8am–11am departure, ideally on a Wednesday. Flights in that window arrived on time 87.6% of the time and Wednesday flights 84.4%, against 75.8% for the route overall.
The US average over the same twelve months is 77.3%, so there is little to separate this route from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
75.8%
Arrivals under 15 minutes late, of 1,022 completed flights
Avg delay
56 min
Across delayed arrivals only, not all flights
Cancelled
1.73%
National rate is 1.89%
Best carrier
JetBlue
77.9% on time across 834 flights
These figures cover 1,042 flights between September 2025 and August 2026. Beyond the headline rate, 8.6% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
Which airline is most reliable on FLL to LAS
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 | 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
Flights on FLL to LAS
The flight numbers below flew this route at least 250 times in the period, busiest first. Each has its own record, with its schedule and delay causes.
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Best ways to make this trip
The most reliable ways to fly Fort Lauderdale to Las Vegas
Every airline on this route and on the routes between nearby airports, ranked by how often a scheduled flight actually operated and arrived on time. 1 of the top 2 use a different airport at one end.
| Option | Airline | Success | On time | Cancelled | Best departure | Most punctual flight |
|---|---|---|---|---|---|---|
| 1. FLL → LASFort Lauderdale to Las Vegas | JetBlue Airways | 76.8% | 77.9% | 1.44% | 5am–8am, Wed | B6 1707 07:00 |
| 2. MIA → LASMiami to Las Vegas | American Airlines | 73.1% | 73.6% | 0.72% | 8am–11am, Wed (route) | — |
Success is the share of scheduled flights that operated and arrived less than 15 minutes late, so a cancelled flight counts against it. “(route)” means the best time comes from every carrier on the route rather than this airline alone.
Departure window
The best time of day to leave
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 22 points, against half a point between the best and worst carrier.
- 5am–8am216 flights87.3%
- 8am–11am113 flights87.6%
- 11am–2pm6 flights—
- 2pm–5pm168 flights77.9%
- 5pm–8pm276 flights70.4%
- 8pm–5am263 flights65.5%
Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.
Book the morning departure. Flights leaving between 8am–11am arrive on time 87.6% of the time, against 65.5% for the overnight window. That is 22 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5pm–8pm window is the busiest, with 276 flights scheduled in it.
Explore
Filter FLL to LAS by airline, time, month and day
Pick a breakdown and a carrier. The dashed mark on each row is the same slice for every US flight.
On FLL to LAS, the best departure window is 8am–11am at 87.6% on time and the worst is 8pm–5am at 65.5%, a wide gap of 22.1 points. All US flights leaving 8am–11am ran 83.9%.
- 5–8am87.3%
- 8–11am87.6%
- 11am–2pm—
- 2–5pm77.9%
- 5–8pm70.4%
- 8pm–5am65.5%
best all US flightsScale 55% to 95%. Cells under 30 flights show a dash.
Across the year
When delays peak on this route
This route's year swings by 27 points from best month to worst, which is wide. An annual average tells you very little about the week you are actually flying, so read the strip rather than the headline if your dates are fixed.
December is the weak month at 67.0% on time, against 93.7% in November. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. March was the busiest month here, with 127 flights.
Across the week, Wednesday is the strongest day at 84.4% on time and Sunday the weakest at 69.3%, a spread of 15 points.
Delay causes
Why this route gets delayed
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 14,000 reported delay minutes.
- 37%Late-arriving aircraft
- 33%Carrier
- 27%National Airspace System
- 2%Extreme weather
- 0%Security
37% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 14,000 reported delay minutes here, that single category outweighs weather by 16 to one. The split is drawn from 13,922 reported delay minutes.
The practical consequence: the 8am–11am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 87.6% on time here.
Cancellations sit at 1.73% against a national 1.89%, which is ordinary. Diversions add another 0.19%.
Connections and stage length
What a delay here actually costs
8.6% 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 76.4% on time across 1,042 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. 1,042 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.
Work out the risk of missing a connection in LAS after this flight
What to do with this
Booking this route
Put together: treat all of this as provisional. 1,042 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 75.8% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 1,022 completed flights over 12 months sit behind that.
Common questions
FLL to LAS questions
How often is FLL to LAS delayed?
About one flight in four arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 24.2% of the 1,042 flights in this analysis, against 22.7% nationally. Delayed flights are late by about an hour on average.
How reliable is FLL to LAS compared with the rest of the country?
75.8% of flights arrive on time here against a national 77.3%, a difference of 2 points against it. That is worth a B on this site's grading scale.
What time of day has the fewest delays on FLL to LAS?
The 8am–11am departure window is the strongest at 87.6% on time. The 8pm–5am window is the weakest at 65.5%, 22 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.
How bad are December delays on FLL to LAS?
December is the weakest month at 67.0% on time, compared with 93.7% in November. Across the year that is 27 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.
Related
Where to go next
- LAS to FLL — the return legseparate record
- Fort Lauderdale-Hollywood International (FLL) delay statistics
- Harry Reid International (LAS) delay statistics
- JetBlue Airways on FLL to LAS77.9%
- Spirit Airlines on FLL to LAS66.5%
- FLL to ATL, a related route71.0%
- LAX to LAS, a related route75.8%
- FLL to LGA, a related route64.8%
- Delta Air Lines on-time record100.0%
- JetBlue Airways on-time record77.9%
- Southwest Airlines on-time record71.4%
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.05 million flight records
Direction matters. FLL to LAS and LAS to FLL are scored separately because they are separate operations, with different departure banks and different aircraft. Compare the return leg.
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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.