Carrier route record
ASPDX→EWR
Alaska Airlines · Portland to Newark
- Flights
- 349
- Period
- July 2025 to June 2026
- Share of route
- 40%
- Carriers
- 2
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Alaska Airlines.
Alaska on PDX to EWR lands a B, 4 points better than the national rate of 77.6%. About one flight in six arrives 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 349 flights, with a median arrival 13 minutes early.
Set against the rest of the country, Alaska's PDX to EWR record is 4 points better than the US average of 77.6%. That gap is worth roughly 43 fewer late arrivals for every thousand flights.
Key figures
On time
81.9%
Arrivals under 15 minutes late, of 342 completed flights
Avg delay
79 min
Across delayed arrivals only, not all flights
Cancelled
2.01%
National rate is 1.81%
Whole route
83.2%
Every carrier on PDX to EWR, 870 flights
These figures cover 349 flights between July 2025 and June 2026. The median arrival is 13 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
Carrier by carrier
Alaska against every carrier on PDX to EWR
Alaska flew 349 of the 870 flights on PDX to EWR, about 40% of it. Its 81.9% on time is about level with the route as a whole at 83.2%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from United at 84.1% to Alaska at 81.9%.
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 | 521 | 84.1% | 72 min | 1.92% | B |
| Alaska Airlines (this page)thin sample | 349 | 81.9% | 79 min | 2.01% | B |
Flight by flight
Alaska flight numbers on PDX to EWR
Departure window
When Alaska runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 10 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–8am63 flights88.9%
- 8am–11am265 flights78.7%
- 11am–2pm—
- 2pm–5pm—
- 5pm–8pm—
- 8pm–5am21 flights—
Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 88.9% of the time, against 78.7% for the morning window. That is 10 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 8am–11am window is the busiest, with 265 flights scheduled in it.
Across the year
Alaska on PDX to EWR through the year
August is the worst month at 67.7% on time, 32 points below April, the best at 100.0%. 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. June was the busiest month here, with 51 flights.
Across the week, Friday is the strongest day at 95.8% on time and Thursday the weakest at 70.8%. 25 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. National Airspace System accounts for 84% of the 4,867 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.
- 84%National Airspace System
- 11%Carrier
- 3%Late-arriving aircraft
- 2%Extreme weather
84% 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 4,091 minutes out of 4,867, against a national NAS share of 21%. The split is drawn from 4,867 reported delay minutes.
Cancellations sit at 2.01% against a national 1.81%, which is ordinary. Diversions add another 0.00%.
Connections and stage length
What a delay here costs
7.9% 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 last a little over an hour, which a normal layover absorbs.
At 2,434 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 73.2% on time across 349 flights, 9 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 9 points of difference.
One caution: this is a thin sample. 349 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 PDX to EWR
Put together: treat all of this as provisional. 349 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 81.9% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 342 completed flights over 12 months sit behind that.
Related
Where to go next
- PDX to EWR, every carrier
- Alaska on EWR to PDX, the return leg
- United Airlines on PDX to EWR84.1%
- Alaska Airlines network-wide record
- Portland International (PDX) delay statistics
- Newark Liberty International (EWR) delay statistics
- 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
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.