Carrier route record
ASJFK→PDX
Alaska Airlines · New York to Portland
- Flights
- 374
- Period
- September 2025 to August 2026
- Share of route
- 40%
- Carriers
- 2
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Alaska Airlines.
Alaska on JFK to PDX 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 77.3%. The late ones land a little over an hour behind schedule. That rests on 374 flights, with a median arrival 2 minutes early.
The national on-time rate over the same period is 77.3%, so Alaska on JFK to PDX runs 4 points behind the country as a whole. Across a thousand flights that is about 41 extra late arrivals.
Key figures
On time
73.2%
Arrivals under 15 minutes late, of 365 completed flights
Avg delay
74 min
Across delayed arrivals only, not all flights
Cancelled
2.14%
National rate is 1.89%
Whole route
71.4%
Every carrier on JFK to PDX, 924 flights
These figures cover 374 flights between September 2025 and August 2026. Beyond the headline rate, 8.8% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
Alaska against every carrier on JFK to PDX
Alaska flew 374 of the 924 flights on JFK to PDX, about 40% of it. Its 73.2% on time is 2 points better than the route as a whole, which runs 71.4%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from Alaska at 73.2% to Delta at 70.3%.
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) | 374 | 73.2% | 74 min | 2.14% | C |
| Delta Air Lines | 550 | 70.3% | 64 min | 2.55% | C |
Flight by flight
Alaska flight numbers on JFK to PDX
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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 17 points, against half a point between the best and worst carrier.
- 5am–8am—
- 8am–11am41 flights87.8%
- 11am–2pm—
- 2pm–5pm23 flights—
- 5pm–8pm310 flights70.4%
- 8pm–5am—
Scale runs 60% to 95%. Rows with fewer than 30 flights show a dash.
Book the morning departure. Flights leaving between 8am–11am arrive on time 87.8% of the time, against 70.4% for the evening window. That is 17 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5pm–8pm window is the busiest, with 310 flights scheduled in it.
Across the year
Alaska on JFK to PDX through the year
December is the weak month at 53.3% on time, against 90.3% in May. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. August was the busiest month here, with 41 flights.
Across the week, Wednesday is the strongest day at 78.8% on time and Thursday the weakest at 61.5%, a spread of 17 points.
Arrival by arrival
How late Alaska on JFK to PDX runs when it is late
Alaska on JFK to PDX often beats the schedule: 123 of 365 completed flights, 34%, arrived 15 minutes or more early. The 98 late arrivals split 40 under half an hour, 26 between 30 and 60 minutes, and 32 an hour or more.
- 15+ min early123 flights33.7%
- Within 15 min144 flights39.5%
- 15–29 min late40 flights11.0%
- 30–59 min late26 flights7.1%
- 1–2 hours late17 flights4.7%
- 2+ hours late15 flights4.1%
Scale runs 0% to 100%.
Share of 365 completed flights by arrival against schedule.
16 of 67 late departures made up the time and arrived on time, 24% of them. In the other direction, 47 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at PDX.
The worst days
Worst days for Alaska on JFK to PDX
The latest arrival of the period was on 29 August 2026, 7 hours 31 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 29 August 2026 | 7 hours 31 minutes | Late-arriving aircraft |
| 27 August 2026 | 6 hours 20 minutes | Late-arriving aircraft |
| 24 February 2026 | 5 hours 33 minutes | Late-arriving aircraft |
| 18 March 2026 | 5 hours 28 minutes | Carrier |
| 14 December 2025 | 5 hours 11 minutes | Late-arriving aircraft |
Delay causes
Why Alaska runs late on this route
Late-arriving aircraft accounts for 45% of the 7,225 delay minutes carriers reported here, and the remaining four split what is left.
- 45%Late-arriving aircraft
- 32%National Airspace System
- 13%Carrier
- 5%Extreme weather
- 4%Security
45% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 7,225 reported delay minutes here, that single category outweighs weather by 9 to one. The split is drawn from 7,225 reported delay minutes.
32% 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 2,345 minutes out of 7,225, against a national NAS share of 21%.
Cancellations sit at 2.14% against a national 1.89%, which is ordinary. Diversions add another 0.27%.
Connections and stage length
What a delay here costs
8.8% 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 82.5% on time across 374 flights, 9 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 9 points of difference.
One caution: this is a thin sample. 374 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 JFK to PDX
Put together: treat all of this as provisional. 374 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 73.2% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 365 completed flights over 12 months sit behind that.
Related
Where to go next
- JFK to PDX, every carrier
- Alaska on PDX to JFK, the return leg
- Delta Air Lines on JFK to PDX70.3%
- Alaska Airlines network-wide record
- John F. Kennedy International (JFK) delay statistics
- Portland International (PDX) delay statistics
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.05 million flight records
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.