Route reliability record
LAS→EWR
Las Vegas to Newark
- Flights
- 2,861
- Period
- September 2025 to August 2026
- Distance
- 2,227 mi
- Carriers
- 3
This route lands a B, 4 points 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 an hour and a half on average. That rests on 2,861 LAS to EWR flights, with a median arrival 12 minutes early.
Best time to fly LAS to EWR: a 5am–8am departure, ideally on a Wednesday. Flights in that window arrived on time 92.9% of the time and Wednesday flights 86.0%, against 81.5% for the route overall.
Set against the rest of the country, this route's record is 4 points better than the US average of 77.3%. That gap is worth roughly 42 fewer late arrivals for every thousand flights.
Key figures
On time
81.5%
Arrivals under 15 minutes late, of 2,772 completed flights
Avg delay
82 min
Across delayed arrivals only, not all flights
Cancelled
1.82%
National rate is 1.89%
Best carrier
United
81.8% on time across 2,458 flights
These figures cover 2,861 flights between September 2025 and August 2026. Beyond the headline rate, 8.5% 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 EWR
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 |
|---|---|---|---|---|---|
| United Airlines | 2,458 | 81.8% | 84 min | 1.63% | B |
| Spirit Airlinesthin sample | 92 | 80.7% | 87 min | 4.35% | B− |
| JetBlue Airwaysthin sample | 311 | 78.8% | 71 min | 2.57% | B |
Flight by flight
Flights on LAS to EWR
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.
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.
Best ways to make this trip
The most reliable ways to fly Las Vegas to Newark
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. 3 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 23 points, against half a point between the best and worst carrier.
- 5am–8am373 flights92.9%
- 8am–11am574 flights80.8%
- 11am–2pm420 flights69.8%
- 2pm–5pm601 flights78.6%
- 5pm–8pm25 flights—
- 8pm–5am868 flights84.2%
Scale runs 60% to 100%. 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 69.8% on time against 92.9% 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 8pm–5am window is the busiest, with 868 flights scheduled in it.
Explore
Filter LAS to EWR 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 EWR, the best departure window is 5am–8am at 92.9% on time and the worst is 11am–2pm at 69.8%, a wide gap of 23.1 points. All US flights leaving 5am–8am ran 89.3%.
- 5–8am92.9%
- 8–11am80.8%
- 11am–2pm69.8%
- 2–5pm78.6%
- 5–8pm—
- 8pm–5am84.2%
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 67.2% on time, 22 points below May, the best at 89.1%. 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. April was the busiest month here, with 285 flights.
Across the week, Wednesday is the strongest day at 86.0% on time and Thursday the weakest at 76.0%, a spread of 10 points.
Delay causes
Why this route gets delayed
National Airspace System accounts for 46% of the 42,000 delay minutes carriers reported here, and the remaining four split what is left.
- 46%National Airspace System
- 30%Late-arriving aircraft
- 22%Carrier
- 2%Extreme weather
- 0%Security
46% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 20,000 minutes out of 42,000, against a national NAS share of 21%. The split is drawn from 42,330 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 92.9% on time here.
Cancellations sit at 1.82% against a national 1.89%, which is ordinary. Diversions add another 1.29%.
Connections and stage length
What a delay here actually costs
8.5% 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 2,227 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 2,863 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 2,861 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 EWR after this flight
What to do with this
Booking this route
Put together: the calendar is the biggest lever here, not the carrier or the hour. May runs 89.1% on time and August 67.2%, a swing of 22 points. If the dates move at all, move them out of August before you think about anything else. 2,772 completed flights over 12 months sit behind that.
Common questions
LAS to EWR questions
How often is LAS to EWR 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 18.5% of the 2,861 flights in this analysis, against 22.7% nationally. Delayed flights are late by an hour and a half on average.
How reliable is LAS to EWR compared with the rest of the country?
81.5% of flights arrive on time here against a national 77.3%, a difference of 4 points in its favour. That is worth a B on this site's grading scale.
What time of day has the fewest delays on LAS to EWR?
The 5am–8am departure window is the strongest at 92.9% on time. The 11am–2pm window is the weakest at 69.8%, 23 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 EWR?
August is the weakest month at 67.2% on time, compared with 89.1% 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
- EWR to LAS — the return legseparate record
- Harry Reid International (LAS) delay statistics
- Newark Liberty International (EWR) delay statistics
- United Airlines on LAS to EWR81.8%
- JetBlue Airways on LAS to EWR78.8%
- LAS to LAX, a related route77.9%
- MCO to EWR, a related route75.0%
- LAS to DEN, a related route76.5%
- United Airlines on-time record81.8%
- Spirit Airlines on-time record80.7%
- JetBlue Airways on-time record78.8%
- The best time of day to fly, according to 7.05 million flight records
- Worst months to fly in the US, ranked by the data
Direction matters. LAS to EWR and EWR 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.