Route reliability record
LAS→JFK
Las Vegas to New York
- Flights
- 3,717
- Period
- September 2025 to August 2026
- Distance
- 2,248 mi
- Carriers
- 4
This route lands a B, 3 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That rests on 3,717 LAS to JFK flights, of which Delta Air Lines flew 1,676 at 82.9% on time.
Best time to fly LAS to JFK: a 5am–8am departure, ideally on a Wednesday. Flights in that window arrived on time 89.3% of the time and Wednesday flights 86.7%, against 80.0% for the route overall.
Delta Air Lines is the most reliable of the three carriers covered here at 82.9% on time across 1,676 flights.
Key figures
On time
80.0%
Arrivals under 15 minutes late, of 3,572 completed flights
Avg delay
85 min
Across delayed arrivals only, not all flights
Cancelled
2.96%
National rate is 1.89%
Best carrier
Delta
82.9% on time across 1,676 flights
These figures cover 3,717 flights between September 2025 and August 2026. Beyond the headline rate, 8.1% 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 LAS to JFK
The choice of carrier is not cosmetic here. Delta Air Lines arrives on time 82.9% of the time; JetBlue Airways manages 76.7%. Sample sizes sit next to every figure, because a two-point gap across 1,380 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Delta Air Lines | 1,676 | 82.9% | 73 min | 2.80% | B |
| Frontier Airlinesthin sample | 140 | 80.6% | 55 min | 0.71% | B+ |
| American Airlines | 521 | 79.6% | 97 min | 2.11% | B |
| JetBlue Airways | 1,380 | 76.7% | 94 min | 3.70% | B− |
JetBlue Airways cancels 3.7% 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 LAS to JFK
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 Las Vegas to New York
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. LAS → JFKLas Vegas to New York | Delta Air Lines | 80.6% | 82.9% | 2.80% | 5am–8am, Sat | DL 510 07:00 |
| 2. LAS → EWRLas Vegas to Newark | United Airlines | 80.5% | 81.8% | 1.63% | 5am–8am, Wed | UA 406 23:45 |
| 3. LAS → JFKLas Vegas to New York | American Airlines | 77.9% | 79.6% | 2.11% | 8am–11am, Mon | — |
| 4. LAS → JFKLas Vegas to New York | JetBlue Airways | 73.9% | 76.7% | 3.70% | 5am–8am, Wed | B6 948 23:59 |
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 14 points, against 6 points between the best and worst carrier.
- 5am–8am646 flights89.3%
- 8am–11am657 flights83.1%
- 11am–2pm948 flights75.0%
- 2pm–5pm531 flights77.2%
- 5pm–8pm—
- 8pm–5am935 flights78.1%
Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.
The weak window here is the middle of the day, not the evening: 11am–2pm runs 75.0% on time against 89.3% for 5am–8am. That shape usually means a departure bank rather than an accumulating delay, so the recovery later in the afternoon is real rather than noise. The 11am–2pm window is the busiest, with 948 flights scheduled in it.
Explore
Filter LAS to JFK 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 LAS to JFK, the best departure window is 5am–8am at 89.3% on time and the worst is 11am–2pm at 75.0%, a wide gap of 14.3 points. All US flights leaving 5am–8am ran 89.3%.
- 5–8am89.3%
- 8–11am83.1%
- 11am–2pm75.0%
- 2–5pm77.2%
- 5–8pm—
- 8pm–5am78.1%
best all US flightsScale 60% to 95%. Cells under 30 flights show a dash.
Across the year
When delays peak on this route
This route's year swings by 22 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 64.8% on time, 22 points below May, the best at 86.3%. 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 344 flights.
Across the week, Wednesday is the strongest day at 86.7% on time and Sunday the weakest at 74.3%, a spread of 12 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 60,000 reported delay minutes.
- 36%Carrier
- 32%Late-arriving aircraft
- 30%National Airspace System
- 2%Extreme weather
- 0%Security
The largest share of delay minutes, 36%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 22,000 of the 60,000 delay minutes reported here. The split is drawn from 60,426 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 89.3% on time here.
Cancellations run at 2.96%, against 1.89% nationally. That is roughly one flight in 30 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
8.1% 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 an hour and a half, 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 78.1% on time across 3,721 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 3,717 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 JFK after this flight
What to do with this
Booking this route
Put together: the delay figures matter less here than the 2.96% cancellation rate. A late arrival costs you an hour and a half; 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. 3,572 completed flights over 12 months sit behind that.
Common questions
LAS to JFK questions
How often is LAS to JFK delayed?
About 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 20.0% of the 3,717 flights in this analysis, against 22.7% nationally. Delayed flights are late by an hour and a half on average.
Which airline is most reliable on LAS to JFK?
Delta Air Lines leads at 82.9% on time across 1,676 flights. JetBlue Airways is at the other end on 76.7%, a gap of 6 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 LAS to JFK?
The 5am–8am departure window is the strongest at 89.3% on time. The 11am–2pm window is the weakest at 75.0%, 14 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 LAS to JFK?
August is the weakest month at 64.8% on time, compared with 86.3% in May. Across the year that is 22 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
- JFK to LAS — the return legseparate record
- Harry Reid International (LAS) delay statistics
- John F. Kennedy International (JFK) delay statistics
- Delta Air Lines on LAS to JFK82.9%
- Frontier Airlines on LAS to JFK80.6%
- American Airlines on LAS to JFK79.6%
- JetBlue Airways on LAS to JFK76.7%
- LAS to LAX, a related route77.9%
- LAX to JFK, a related route77.5%
- LAS to DEN, a related route76.5%
- Delta Air Lines on-time record82.9%
- Frontier Airlines on-time record80.6%
- American Airlines on-time record79.6%
- The US routes with the most cancellations
- The best time of day to fly, according to 7.05 million flight records
Direction matters. LAS to JFK and JFK to LAS 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.