Carrier route record
ASEWR→LAX
Alaska Airlines · Newark to Los Angeles
- Flights
- 553
- Period
- July 2025 to June 2026
- Share of route
- 11%
- Carriers
- 4
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Alaska Airlines.
Alaska on EWR to LAX sits in the middle of the pack with a C. Close to three flights in four arrive on time by the DOT's definition, 4 points worse than the national rate of 77.6%. The late ones land a little over an hour behind schedule. That rests on 553 flights. The strongest carrier on the route with a full sample, United Airlines, flew 3,540 at 72.2% on time.
The US average over the same twelve months is 77.6%, so there is little to separate Alaska on EWR to LAX from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
74.0%
Arrivals under 15 minutes late, of 542 completed flights
Avg delay
70 min
Across delayed arrivals only, not all flights
Cancelled
1.81%
National rate is 1.81%
Whole route
71.9%
Every carrier on EWR to LAX, 4,927 flights
These figures cover 553 flights between July 2025 and June 2026. Beyond the headline rate, 11.3% 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
Alaska against every carrier on EWR to LAX
Alaska flew 553 of the 4,927 flights on EWR to LAX, about 11% of it. Its 74.0% on time is 2 points better than the route as a whole, which runs 71.9%. Ranked by on-time rate it is first of four carriers on the route, where the range runs from Alaska at 74.0% to Spirit at 66.7%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
The two carriers here are closely matched: 2 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 |
|---|---|---|---|---|---|
| Alaska Airlines (this page) | 553 | 74.0% | 70 min | 1.81% | C |
| United Airlines | 3,540 | 72.2% | 83 min | 1.95% | C |
| JetBlue Airways | 517 | 70.5% | 83 min | 2.71% | C |
| Spirit Airlinesthin sample | 317 | 66.7% | 86 min | 6.62% | C− |
No carrier stands out. United tops the table at 72.2%, 2 points clear of the bottom, which is inside the range this kind of sample moves year to year.
Flight by flight
Alaska flight numbers on EWR to LAX
Departure window
When Alaska runs best on this route
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 553 flights.
- 5am–8am7 flights—
- 8am–11am183 flights74.2%
- 11am–2pm—
- 2pm–5pm—
- 5pm–8pm222 flights74.3%
- 8pm–5am141 flights72.6%
Scale runs 65% to 80%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is the strongest at 74.3% on time. The full set of windows spans 2 points.
Across the year
Alaska on EWR to LAX through the year
April is the best month on the calendar at 96.7% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. July was the busiest month here, with 62 flights.
Across the week, Wednesday is the strongest day at 82.3% on time and Sunday the weakest at 68.9%. 13 points is a smaller lever than departure hour, but it is free.
Delay causes
Why Alaska runs late on this route
One category carries most of the weight here. Late-arriving aircraft accounts for 45% of the 9,916 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.
- 45%Late-arriving aircraft
- 31%National Airspace System
- 16%Carrier
- 7%Extreme weather
- 0%Security
45% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 9,916 reported delay minutes here, that single category outweighs weather by 7 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 9,916 reported delay minutes.
Cancellations sit at 1.81% against a national 1.81%, which is ordinary. Diversions add another 0.18%.
Connections and stage length
What a delay here costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 11.3% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
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 90.1% on time across 552 flights, 16 points above 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 16 points of difference.
One caution: this is a thin sample. 553 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking Alaska on EWR to LAX
Put together: treat all of this as provisional. 553 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 74.0% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 542 completed flights over 12 months sit behind that.
Related
Where to go next
- EWR to LAX, every carrier
- Alaska on LAX to EWR, the return leg
- United Airlines on EWR to LAX72.2%
- JetBlue Airways on EWR to LAX70.5%
- Spirit Airlines on EWR to LAX66.7%
- Alaska Airlines network-wide record
- Newark Liberty International (EWR) delay statistics
- Los Angeles International (LAX) delay statistics
- Why the first flight of the morning is statistically safest
- How often a connection fails at the major US hubs
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.