Route reliability record
LAS→EWR
Las Vegas to Newark
- Flights
- 2,990
- Period
- July 2025 to June 2026
- Distance
- 2,227 mi
- Carriers
- 3
This route lands a B, 4 points better than the national rate of 77.6%. About one flight in five arrive 15 minutes late or worse, and those flights are late by a little over an hour on average. That is a workable record, not a spotless one. That rests on 2,990 flights, with a median arrival 12 minutes early.
The US average over the same twelve months is 77.6%, 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
81.4%
Arrivals under 15 minutes late, of 2,920 completed flights
Avg delay
81 min
Across delayed arrivals only, not all flights
Cancelled
1.61%
National rate is 1.81%
Best carrier
United
82.0% on time across 2,478 flights
These figures cover 2,990 flights between July 2025 and June 2026. Beyond the headline rate, 8.5% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
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 | 2,478 | 82.0% | 83 min | 1.37% | B |
| JetBlue Airwaysthin sample | 311 | 78.8% | 71 min | 2.57% | B |
| Spirit Airlinesthin sample | 201 | 77.6% | 69 min | 2.99% | B |
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. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am345 flights93.2%
- 8am–11am628 flights80.9%
- 11am–2pm422 flights71.2%
- 2pm–5pm632 flights76.5%
- 5pm–8pm25 flights—
- 8pm–5am938 flights85.0%
Scale runs 65% 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 71.2% on time against 93.2% 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 938 flights scheduled in it.
Across the year
When delays peak on this route
This route's year swings by 17 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.
July is the worst month at 72.1% on time, 17 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, Tuesday is the strongest day at 85.5% on time and Thursday the weakest at 75.1%. 10 points is a smaller lever than departure hour, but it is free.
Delay causes
Why this route gets delayed
One category carries most of the weight here. National Airspace System accounts for 51% of the 44,000 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.
- 51%National Airspace System
- 28%Late-arriving aircraft
- 19%Carrier
- 2%Extreme weather
- 0%Security
51% 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 22,000 minutes out of 44,000, against a national NAS share of 21%. The split is drawn from 43,812 reported delay minutes.
Cancellations sit at 1.61% against a national 1.81%, which is ordinary. Diversions add another 0.74%.
Connections and stage length
What a delay here actually costs
8.5% of arrivals land an hour or more late, close to the national 8.1%. 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 are the a little over an hour kind, 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 80.1% on time across 2,992 flights, within about a point 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 2,990 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.
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 July 72.1%, a swing of 17 points. If the dates move at all, move them out of July before you think about anything else. 2,920 completed flights over 12 months sit behind that.
Common questions
LAS to EWR questions
How often is LAS to EWR delayed?
About one flight in five arrive at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 18.6% of the 2,990 flights in this analysis, against 22.4% nationally. Delayed flights are late by a little over an hour on average.
How reliable is LAS to EWR compared with the rest of the country?
81.4% of flights arrive on time here against a national 77.6%, 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 93.2% on time. The 11am–2pm window is the weakest at 71.2%, 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 July delays on LAS to EWR?
July is the weakest month at 72.1% on time, compared with 89.1% in May. Across the year that is 17 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-time record82.0%
- JetBlue Airways on-time record78.8%
- Spirit Airlines on-time record77.6%
- The best time of day to fly, according to 7.04 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.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Updated monthly. How this data is collected.