Route reliability record
LAX→EWR
Los Angeles to Newark
- Flights
- 4,748
- Period
- September 2025 to August 2026
- Distance
- 2,454 mi
- Carriers
- 4
This route lands a B, 2 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 a little over an hour on average. That rests on 4,748 LAX to EWR flights, of which Alaska Airlines flew 490 at 91.6% on time.
Best time to fly LAX to EWR: a 5am–8am departure, ideally on a Wednesday. Flights in that window arrived on time 93.8% of the time and Wednesday flights 83.8%, against 79.1% for the route overall.
Alaska Airlines is the most reliable of the three carriers covered here at 91.6% on time across 490 flights.
Key figures
On time
79.1%
Arrivals under 15 minutes late, of 4,591 completed flights
Avg delay
75 min
Across delayed arrivals only, not all flights
Cancelled
2.11%
National rate is 1.89%
Best carrier
Alaska
91.6% on time across 490 flights
These figures cover 4,748 flights between September 2025 and August 2026. Beyond the headline rate, 8.4% 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 LAX to EWR
The choice of carrier is not cosmetic here. Alaska Airlines arrives on time 91.6% of the time; United Airlines manages 77.7%. Sample sizes sit next to every figure, because a two-point gap across 3,526 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Alaska Airlines | 490 | 91.6% | 58 min | 1.63% | A |
| JetBlue Airways | 480 | 78.4% | 79 min | 3.54% | B− |
| United Airlines | 3,526 | 77.7% | 77 min | 1.76% | B |
| Spirit Airlinesthin sample | 252 | 75.1% | 51 min | 5.16% | B− |
JetBlue Airways cancels 3.5% 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 LAX 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.
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Best ways to make this trip
The most reliable ways to fly Los Angeles 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. 2 of the top 5 use a different airport at one end.
| Option | Airline | Success | On time | Cancelled | Best departure | Most punctual flight |
|---|---|---|---|---|---|---|
| 1. LAX → EWRLos Angeles to Newark | Alaska Airlines | 90.1% | 91.6% | 1.63% | 5am–8am, Tue | — |
| 2. SNA → EWRSanta Ana to Newark | United Airlines | 77.6% | 79.3% | 2.11% | 5am–8am, Sat | UA 2186 21:14 |
| 3. LAX → JFKLos Angeles to New York | Delta Air Lines | 77.3% | 79.4% | 2.61% | 5am–8am, Wed | DL 934 06:00 |
| 4. LAX → EWRLos Angeles to Newark | United Airlines | 76.3% | 77.7% | 1.76% | 5am–8am, Tue | UA 2743 07:00 |
| 5. LAX → EWRLos Angeles to Newark | JetBlue Airways | 75.6% | 78.4% | 3.54% | 5am–8am, Fri | — |
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 28 points, against 14 points between the best and worst carrier.
- 5am–8am944 flights93.8%
- 8am–11am1,080 flights76.4%
- 11am–2pm1,184 flights65.9%
- 2pm–5pm405 flights79.3%
- 5pm–8pm—
- 8pm–5am1,135 flights83.0%
Scale runs 55% 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 65.9% on time against 93.8% 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 1,184 flights scheduled in it.
Explore
Filter LAX 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 LAX to EWR, the best departure window is 5am–8am at 93.8% on time and the worst is 11am–2pm at 65.9%, a wide gap of 27.9 points. All US flights leaving 5am–8am ran 89.3%.
- 5–8am93.8%
- 8–11am76.4%
- 11am–2pm65.9%
- 2–5pm79.3%
- 5–8pm—
- 8pm–5am83.0%
best all US flightsScale 55% to 100%. Cells under 30 flights show a dash.
Across the year
When delays peak on this route
This route's year swings by 20 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.
May is the best month on the calendar at 90.2% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. October was the busiest month here, with 481 flights.
Across the week, Wednesday is the strongest day at 83.8% on time and Sunday the weakest at 74.2%, 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 72,000 reported delay minutes.
- 36%National Airspace System
- 32%Late-arriving aircraft
- 31%Carrier
- 1%Extreme weather
36% 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 26,000 minutes out of 72,000, against a national NAS share of 21%. The split is drawn from 71,855 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 93.8% on time here.
Cancellations sit at 2.11% against a national 1.89%, which is ordinary. Diversions add another 1.20%.
Connections and stage length
What a delay here actually costs
8.4% 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 a little over an hour, which a normal layover absorbs.
At 2,454 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 is a different operation and performs like one: it runs 70.7% on time across 4,750 flights, 8 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 8 points of difference.
The sample behind these figures is 4,748 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 90.2% on time and March 70.2%, a swing of 20 points. If the dates move at all, move them out of March before you think about anything else. 4,591 completed flights over 12 months sit behind that.
Common questions
LAX to EWR questions
How often is LAX to EWR 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 20.9% of the 4,748 flights in this analysis, against 22.7% nationally. Delayed flights are late by a little over an hour on average.
Which airline is most reliable on LAX to EWR?
Alaska Airlines leads at 91.6% on time across 490 flights. United Airlines is at the other end on 77.7%, a gap of 14 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 LAX to EWR?
The 5am–8am departure window is the strongest at 93.8% on time. The 11am–2pm window is the weakest at 65.9%, 28 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 March delays on LAX to EWR?
March is the weakest month at 70.2% on time, compared with 90.2% in May. Across the year that is 20 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 LAX — the return legseparate record
- Los Angeles International (LAX) delay statistics
- Newark Liberty International (EWR) delay statistics
- Alaska Airlines on LAX to EWR91.6%
- JetBlue Airways on LAX to EWR78.4%
- United Airlines on LAX to EWR77.7%
- Spirit Airlines on LAX to EWR75.1%
- LAX to SFO, a related route60.1%
- MCO to EWR, a related route75.0%
- LAX to JFK, a related route77.5%
- Alaska Airlines on-time record91.6%
- JetBlue Airways on-time record78.4%
- United Airlines on-time record77.7%
- Why the first flight of the morning is statistically safest
- Same route, different airline: where the carrier you pick matters most
Direction matters. LAX to EWR and EWR to LAX 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.