AS21: Alaska flight 21
New York JFK (JFK) → Seattle (SEA) · departs 7:22a, lands 10:35a local · Daily
The timetable below has every scheduled departure; for today's flight, check Alaska.
An estimate from the published timetable, not live tracking: it cannot know about delays, diversions or cancellations.
Live status at Alaska →The route
One hop: JFK → SEADrag to pan · scroll with ⌘/Ctrl to zoom · arrow keys when focused
AS21 timetable
Published departure and arrival times, each in its airport's local time, from the flights we sampled Oct 25–31.
| Route | Departs | Arrives | Scheduled | Days |
|---|---|---|---|---|
| JFK → SEANew York JFK to Seattle | 7:22a | 10:35a | 6h13m | Daily |
Other nonstops from New York JFK to Seattle
The departures either side of AS21. Times are New York JFK time.
| Flight | Departs | Days |
|---|---|---|
| Delta DL699 | 7:10a | Daily |
| This flight AS21 | 7:22a | Daily |
| Delta DL1719 | 11:55a | Daily |
| Alaska AS23 | 1:00p | Daily |
| Alaska AS31 | 4:36p | Daily |
All 8 flights from JFK to SEA, by time →
Flying back from Seattle
Alaska flies Seattle to New York JFK nonstop 25 times a week, from 6:58a to 11:18p: 6:58a AS16 · 2:02p AS34 · 11:18p AS22 · every nonstop SEA → JFK →
How AS21 ran in our sample
7 of 7 departures left within 15 minutes of schedule (Oct 25–31). Only flights that departed are counted: cancellations are not in our data.
Aircraft: Boeing 737-900 on 4 of 7; also Boeing 737 MAX 9 (3).
What time does AS21 leave New York JFK?
AS21 is scheduled to depart New York JFK (JFK) at 7:22a (daily), New York JFK time, and to land in Seattle (SEA) at about 10:35a local time, a scheduled 6h13m. Times are the published ones from the flights we sampled Oct 25–31; check Alaska for today's.
What plane is AS21?
Boeing 737-900 on 4 of the 7 AS21 flights from JFK we sampled Oct 25–31; the rest were a Boeing 737 MAX 9. Airlines swap aircraft, so the plane on a given day can differ.
Does AS21 fly every day?
Yes — AS21 flew New York JFK to Seattle every day of the week we sampled (Oct 25–31).
Is AS21 usually on time?
Of 7 AS21 departures from JFK we sampled Oct 25–31, 7 left within 15 minutes of the scheduled time. That counts only flights that departed — cancellations are not in our data — and one week is a small sample, so treat it as a hint, not a rating.
More Alaska flights from New York JFK
Timetable from Alaska departures we observed; AS21 is a Alaska Airlines flight number, and Hop Nonstop is not affiliated with Alaska. Schedules change — confirm with the airline before you travel.