Flight number record
AS 18
Alaska Airlines · Portland to New York
- Route
- PDX → JFK
- Departs
- 07:05
- Flights
- 364
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AS 18, check with Alaska Airlines.
AS 18 lands a B, 5 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 364 flights, with a median arrival 6 minutes early.
Set against the rest of the country, AS 18's record is 5 points better than the US average of 77.3%. That gap is worth roughly 47 fewer late arrivals for every thousand flights.
Key figures
On time
82.0%
Arrivals under 15 minutes late, of 350 completed flights
Avg delay
60 min
Across delayed arrivals only, not all flights
Cancelled
1.92%
National rate is 1.89%
1 hour+ late
4.3%
National rate is 8.3%
These figures cover 364 flights between September 2025 and August 2026. The median arrival is 6 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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Schedule
When AS 18 flies
AS 18 flies PDX to JFK without a single fixed slot. Its most common scheduled departure was 07:05, used on 97 of 364 flights, with 10:47 (70 flights) and 07:00 (68 flights) next.
- Departs 07:0597 flights26.6%
- Departs 10:4770 flights19.2%
- Departs 07:0068 flights18.7%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 07:05 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and AS 18 runs 7 points worse at 82.0%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
AS 18 next to PDX to JFK
Every carrier on PDX to JFK combined arrived on time 87.5% of the time across 924 flights, so AS 18 is 6 points behind it. Across its whole network Alaska Airlines managed 79.7%, which this flight beats by 2 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AS 18thin sample | 364 | 82.0% | 60 min | 1.92% | B |
| All Alaska Airlines on PDX–JFK | 374 | 82.5% | 60 min | 1.87% | B |
| All carriers on PDX–JFK | 924 | 87.5% | 65 min | 2.16% | A |
| Alaska Airlines, whole network | 309,844 | 79.7% | 52 min | 1.20% | B |
Across the year
AS 18 quarter by quarter
AS 18 did not run the same all year. Its best quarter was Oct–Dec 2025 at 87.8% on time and its weakest Jul–Sep 2026 at 74.1%, a swing of 14 points on roughly 91 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202530 flights—
- Oct–Dec 202591 flights87.8%
- Jan–Mar 202690 flights83.9%
- Apr–Jun 202691 flights85.6%
- Jul–Sep 202662 flights74.1%
Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, AS 18 did best on Saturday at 93.9% on time and worst on Thursday at 69.4%. Each day rests on about 52 flights, so a gap of 25 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late AS 18 runs when it is late
AS 18 often beats the schedule: 124 of 350 completed flights, 35%, arrived 15 minutes or more early. The 63 late arrivals split 28 under half an hour, 20 between 30 and 60 minutes, and 15 an hour or more.
- 15+ min early124 flights35.4%
- Within 15 min163 flights46.6%
- 15–29 min late28 flights8.0%
- 30–59 min late20 flights5.7%
- 1–2 hours late3 flights0.9%
- 2+ hours late12 flights3.4%
Scale runs 0% to 100%.
Share of 350 completed flights by arrival against schedule.
11 of 39 late departures made up the time and arrived on time, 28% of them. In the other direction, 35 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 JFK.
The worst days
Worst days for AS 18
The latest arrival of the period was on 14 June 2026, 4 hours 26 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. Three of the five worst days fell in June 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 14 June 2026 | 4 hours 26 minutes | National Airspace System |
| 6 July 2026 | 3 hours 47 minutes | National Airspace System |
| 9 July 2026 | 3 hours 21 minutes | National Airspace System |
| 10 June 2026 | 3 hours 11 minutes | National Airspace System |
| 22 June 2026 | 3 hours 7 minutes | National Airspace System |
Delay causes
Why AS 18 runs late
National Airspace System accounts for 90% of the 3,763 delay minutes carriers reported here, and the remaining four split what is left.
- 90%National Airspace System
- 6%Carrier
- 4%Late-arriving aircraft
- 1%Extreme weather
- 0%Security
90% 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 3,377 minutes out of 3,763, against a national NAS share of 21%. The split is drawn from 3,763 delay minutes reported on AS 18.
Cancellations sit at 1.92% against a national 1.89%, which is ordinary. Diversions add another 1.92%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 4.3% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
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.
Every one of the 364 flights under AS 18 in the data flew PDX to JFK. The number was not reused on any other city pair, which makes this a clean record of one route.
One caution: this is a thin sample. 364 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 AS 18
For a booking, AS 18 is one of the weaker ways to fly PDX to JFK: 6 points below the route as a whole. If the schedule allows, compare it with the other departures listed on the route page before settling on this one.
Related
Where to go next
- PDX to JFK, every carrier and departure
- JFK to PDX, the return direction
- Delta Air Lines 451 on the same route92.0%
- Portland International (PDX) delay statistics
- John F. Kennedy International (JFK) delay statistics
- Alaska Airlines on-time record
- Every Alaska Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Worst months to fly in the US, ranked by the data
A flight number here means Alaska Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
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.