Carrier route record
ASPDX→EWR
Alaska Airlines · Portland to Newark
- Flights
- 407
- Period
- September 2025 to August 2026
- Share of route
- 44%
- Carriers
- 2
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Alaska Airlines.
Alaska on PDX to EWR earns an A. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 10 points better than the national rate of 77.3%. When something does go wrong the average delay runs a little over an hour. That rests on 407 flights, with a median arrival 19 minutes early.
Set against the rest of the country, Alaska's PDX to EWR record is 10 points better than the US average of 77.3%. That gap is worth roughly 99 fewer late arrivals for every thousand flights.
Key figures
On time
87.2%
Arrivals under 15 minutes late, of 399 completed flights
Avg delay
79 min
Across delayed arrivals only, not all flights
Cancelled
1.72%
National rate is 1.89%
Whole route
84.3%
Every carrier on PDX to EWR, 923 flights
These figures cover 407 flights between September 2025 and August 2026. The median arrival is 19 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.
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Carrier by carrier
Alaska against every carrier on PDX to EWR
Alaska flew 407 of the 923 flights on PDX to EWR, about 44% of it. Its 87.2% on time is 3 points better than the route as a whole, which runs 84.3%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from Alaska at 87.2% to United at 82.0%.
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 |
|---|---|---|---|---|---|
| Alaska Airlines (this page) | 407 | 87.2% | 79 min | 1.72% | A |
| United Airlines | 516 | 82.0% | 88 min | 1.74% | B |
Flight by flight
Alaska flight numbers on PDX to EWR
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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 11 points, against half a point between the best and worst carrier.
- 5am–8am125 flights91.7%
- 8am–11am203 flights82.9%
- 11am–2pm—
- 2pm–5pm10 flights—
- 5pm–8pm—
- 8pm–5am69 flights94.2%
Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.
The 8pm–5am window is the strongest at 94.2% on time. The full set of windows spans 11 points.
Across the year
Alaska on PDX to EWR through the year
April is the best month on the calendar at 100.0% 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 61 flights.
Across the week, Wednesday is the strongest day at 93.1% on time and Thursday the weakest at 79.3%, a spread of 14 points.
Arrival by arrival
How late Alaska on PDX to EWR runs when it is late
Alaska on PDX to EWR often beats the schedule: 230 of 399 completed flights, 58%, arrived 15 minutes or more early. The 51 late arrivals split 12 under half an hour, 15 between 30 and 60 minutes, and 24 an hour or more.
- 15+ min early230 flights57.6%
- Within 15 min118 flights29.6%
- 15–29 min late12 flights3.0%
- 30–59 min late15 flights3.8%
- 1–2 hours late18 flights4.5%
- 2+ hours late6 flights1.5%
Scale runs 0% to 100%.
Share of 399 completed flights by arrival against schedule.
A late pushback is often recovered here: of 84 departures that left 15 minutes late or more, 41 still arrived on time. 8 flights left on time and still arrived late.
The worst days
Worst days for Alaska on PDX to EWR
The latest arrival of the period was on 9 November 2025, 8 hours 11 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 9 November 2025 | 8 hours 11 minutes | National Airspace System |
| 30 October 2025 | 6 hours 56 minutes | National Airspace System |
| 27 August 2026 | 2 hours 59 minutes | National Airspace System |
| 20 September 2025 | 2 hours 48 minutes | National Airspace System |
| 11 October 2025 | 2 hours 25 minutes | National Airspace System |
Delay causes
Why Alaska runs late on this route
National Airspace System accounts for 78% of the 4,041 delay minutes carriers reported here, and the remaining four split what is left.
- 78%National Airspace System
- 14%Carrier
- 8%Late-arriving aircraft
78% 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 3,148 minutes out of 4,041, against a national NAS share of 21%. The split is drawn from 4,041 reported delay minutes.
Cancellations sit at 1.72% against a national 1.89%, which is ordinary. Diversions add another 0.25%.
Connections and stage length
What a delay here costs
6.0% 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 2,434 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 74.8% on time across 407 flights, 12 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 12 points of difference.
One caution: this is a thin sample. 407 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. 407 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 87.2% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 399 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 EWR82.0%
- 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 7.05 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.