Flight number record
AS 26
Alaska Airlines · Seattle to New York
- Route
- SEA → JFK
- Departs
- 07:00
- Flights
- 363
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AS 26, check with Alaska Airlines.
AS 26 earns an A−. More than four flights in five 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 roughly 55 minutes. That rests on 363 flights, with a median arrival 11 minutes early.
Set against the rest of the country, AS 26's record is 10 points better than the US average of 77.3%. That gap is worth roughly 96 fewer late arrivals for every thousand flights.
Key figures
On time
86.9%
Arrivals under 15 minutes late, of 343 completed flights
Avg delay
53 min
Across delayed arrivals only, not all flights
Cancelled
3.86%
National rate is 1.89%
1 hour+ late
3.2%
National rate is 8.3%
These figures cover 363 flights between September 2025 and August 2026. The median arrival is 11 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 26 flies
AS 26 flies SEA to JFK without a single fixed slot. Its most common scheduled departure was 07:00, used on 70 of 363 flights, with 07:55 (55 flights) next.
- Departs 07:0070 flights19.3%
- Departs 07:5555 flights15.2%
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 07:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and AS 26 runs 2 points worse at 86.9%. 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 26 next to SEA to JFK
Every carrier on SEA to JFK combined arrived on time 78.0% of the time across 2,906 flights, so AS 26 is 9 points ahead of it. Alaska flew 1,402 flights on the same city pair under all its flight numbers, including this one, and those ran 77.7% on time. Across its whole network Alaska Airlines managed 79.7%, which this flight beats by 7 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AS 26thin sample | 363 | 86.9% | 53 min | 3.86% | A− |
| All Alaska Airlines on SEA–JFK | 1,402 | 77.7% | 53 min | 2.64% | B |
| All carriers on SEA–JFK | 2,906 | 78.0% | 69 min | 3.20% | B− |
| Alaska Airlines, whole network | 309,844 | 79.7% | 52 min | 1.20% | B |
Across the year
AS 26 quarter by quarter
AS 26 did not run the same all year. Its best quarter was Apr–Jun 2026 at 96.7% on time and its weakest Jan–Mar 2026 at 77.4%, a swing of 19 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 flights82.1%
- Jan–Mar 202689 flights77.4%
- Apr–Jun 202691 flights96.7%
- Jul–Sep 202662 flights94.5%
Scale runs 70% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, AS 26 did best on Friday at 93.8% on time and worst on Thursday at 81.2%. Each day rests on about 52 flights, so a gap of 13 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late AS 26 runs when it is late
AS 26 often beats the schedule: 148 of 343 completed flights, 43%, arrived 15 minutes or more early. The 45 late arrivals split 17 under half an hour, 17 between 30 and 60 minutes, and 11 an hour or more.
- 15+ min early148 flights43.1%
- Within 15 min150 flights43.7%
- 15–29 min late17 flights5.0%
- 30–59 min late17 flights5.0%
- 1–2 hours late7 flights2.0%
- 2+ hours late4 flights1.2%
Scale runs 0% to 100%.
Share of 343 completed flights by arrival against schedule.
A late pushback is often recovered here: of 54 departures that left 15 minutes late or more, 24 still arrived on time. 15 flights left on time and still arrived late.
The worst days
Worst days for AS 26
The latest arrival of the period was on 14 December 2025, 5 hours 9 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 14 December 2025 | 5 hours 9 minutes | National Airspace System |
| 23 August 2026 | 2 hours 47 minutes | Carrier |
| 26 January 2026 | 2 hours 33 minutes | Extreme weather |
| 8 July 2026 | 2 hours 29 minutes | Carrier |
| 30 May 2026 | 1 hour 47 minutes | Carrier |
Delay causes
Why AS 26 runs late
Carrier accounts for 43% of the 2,405 delay minutes carriers reported here, and the remaining four split what is left.
- 43%Carrier
- 40%National Airspace System
- 11%Late-arriving aircraft
- 6%Extreme weather
40% 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 959 minutes out of 2,405, against a national NAS share of 21%. The split is drawn from 2,405 delay minutes reported on AS 26.
Cancellations run at 3.86%, against 1.89% nationally. That is about one flight in 25 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 3.2% 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 2,422 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 363 flights under AS 26 in the data flew SEA 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. 363 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 26
For a booking, the cancellation rate is the figure to plan around on AS 26: 3.86% of its 363 scheduled flights did not operate. A late arrival costs roughly 55 minutes, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- SEA to JFK, every carrier and departure
- JFK to SEA, the return direction
- Delta Air Lines 429 on the same route88.4%
- Alaska Airlines 34 on the same route77.1%
- Delta Air Lines 415 on the same route71.5%
- Delta Air Lines 452 on the same route84.4%
- Alaska Airlines 16 on the same route64.3%
- Alaska Airlines 22 on the same route83.9%
- Seattle-Tacoma International (SEA) 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
- What a cancellation rate actually tells you (and what it hides)
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.