Route reliability record
JFK→LAS
New York to Las Vegas
- Flights
- 3,721
- Period
- September 2025 to August 2026
- Distance
- 2,248 mi
- Carriers
- 4
This route lands a B, about a point better than 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 3,721 JFK to LAS flights, of which American Airlines flew 522 at 81.0% on time.
Best time to fly JFK to LAS: a 5am–8am departure, ideally on a Wednesday. Flights in that window arrived on time 84.9% of the time and Wednesday flights 83.0%, against 78.1% for the route overall.
American Airlines is the most reliable of the three carriers covered here at 81.0% on time across 522 flights.
Key figures
On time
78.1%
Arrivals under 15 minutes late, of 3,606 completed flights
Avg delay
66 min
Across delayed arrivals only, not all flights
Cancelled
2.82%
National rate is 1.89%
Best carrier
American
81.0% on time across 522 flights
These figures cover 3,721 flights between September 2025 and August 2026. Beyond the headline rate, 8.2% 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 JFK to LAS
The three carriers here are closely matched: 5 points separate the best from the worst. At that spread, schedule and price are better tie-breakers than reliability. Sample sizes are shown so you can see which rows are worth weighing.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| American Airlines | 522 | 81.0% | 101 min | 2.11% | B |
| JetBlue Airways | 1,382 | 80.6% | 67 min | 3.33% | B− |
| Delta Air Lines | 1,676 | 76.4% | 57 min | 2.74% | B |
| Frontier Airlinesthin sample | 141 | 64.0% | 69 min | 1.42% | D |
JetBlue Airways cancels 3.3% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.
Flight by flight
Flights on JFK 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 New York 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 4 use a different airport at one end.
| Option | Airline | Success | On time | Cancelled | Best departure | Most punctual flight |
|---|---|---|---|---|---|---|
| 1. JFK → LASNew York to Las Vegas | American Airlines | 79.3% | 81.0% | 2.11% | 5am–8am, Wed | — |
| 2. EWR → LASNewark to Las Vegas | United Airlines | 79.2% | 80.5% | 1.63% | 5am–8am, Wed | UA 446 10:00 |
| 3. JFK → LASNew York to Las Vegas | JetBlue Airways | 77.9% | 80.6% | 3.33% | 5am–8am, Wed | B6 411 06:00 |
| 4. JFK → LASNew York to Las Vegas | Delta Air Lines | 74.3% | 76.4% | 2.74% | 5am–8am, Tue | DL 806 16:45 |
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 17 points, against 5 points between the best and worst carrier.
- 5am–8am934 flights84.9%
- 8am–11am543 flights82.8%
- 11am–2pm557 flights83.6%
- 2pm–5pm374 flights76.1%
- 5pm–8pm886 flights70.3%
- 8pm–5am427 flights67.8%
Scale runs 60% to 90%.
Book the early departure. Flights leaving between 5am–8am arrive on time 84.9% of the time, against 67.8% 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 934 flights scheduled in it.
Explore
Filter JFK 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 JFK to LAS, the best departure window is 5am–8am at 84.9% on time and the worst is 8pm–5am at 67.8%, a wide gap of 17.1 points. All US flights leaving 5am–8am ran 89.3%.
- 5–8am84.9%
- 8–11am82.8%
- 11am–2pm83.6%
- 2–5pm76.1%
- 5–8pm70.3%
- 8pm–5am67.8%
best all US flightsScale 60% to 95%.
Across the year
When delays peak on this route
This route's year swings by 23 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.
August is the worst month at 61.0% on time, 23 points below March, the best at 84.4%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. October was the busiest month here, with 345 flights.
Across the week, Wednesday is the strongest day at 83.0% on time and Sunday the weakest at 72.8%, a spread of 10 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 52,000 reported delay minutes.
- 34%Carrier
- 32%National Airspace System
- 30%Late-arriving aircraft
- 4%Extreme weather
- 0%Security
The largest share of delay minutes, 34%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 18,000 of the 52,000 delay minutes reported here. The split is drawn from 52,298 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 84.9% on time here.
Cancellations run at 2.82%, against 1.89% nationally. That is roughly one flight in 40 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and stage length
What a delay here actually costs
8.2% 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 2,248 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 80.0% on time across 3,717 flights, within 2 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
The sample behind these figures is 3,721 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
Work out the risk of missing a connection in LAS after this flight
What to do with this
Booking this route
Put together: the delay figures matter less here than the 2.82% cancellation rate. A late arrival costs you about an hour; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 3,606 completed flights over 12 months sit behind that.
Common questions
JFK to LAS questions
How often is JFK to LAS delayed?
Roughly one flight in five arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 21.9% of the 3,721 flights in this analysis, against 22.7% nationally. Delayed flights are late by about an hour on average.
Which airline is most reliable on JFK to LAS?
American Airlines leads at 81.0% on time across 522 flights. Delta Air Lines is at the other end on 76.4%, a gap of 5 points. Sample size matters as much as the percentage: a rate built from a few hundred flights moves around far more than one built from ten thousand.
What time of day has the fewest delays on JFK to LAS?
The 5am–8am departure window is the strongest at 84.9% on time. The 8pm–5am window is the weakest at 67.8%, 17 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 August delays on JFK to LAS?
August is the weakest month at 61.0% on time, compared with 84.4% in March. Across the year that is 23 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 JFK — the return legseparate record
- John F. Kennedy International (JFK) delay statistics
- Harry Reid International (LAS) delay statistics
- American Airlines on JFK to LAS81.0%
- JetBlue Airways on JFK to LAS80.6%
- Delta Air Lines on JFK to LAS76.4%
- Frontier Airlines on JFK to LAS64.0%
- JFK to LAX, a related route75.4%
- LAX to LAS, a related route75.8%
- JFK to SFO, a related route71.4%
- American Airlines on-time record81.0%
- JetBlue Airways on-time record80.6%
- Delta Air Lines on-time record76.4%
- The US routes with the most cancellations
- The best time of day to fly, according to 7.05 million flight records
Direction matters. JFK to LAS and LAS to JFK 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.