AS403: Alaska flight 403
Seattle (SEA) → San Jose (SJC) · departs 8:48p, lands 10:59p local · Mon, Tue, Wed, Thu, Sat, Sun
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: SEA → SJCDrag to pan · scroll with ⌘/Ctrl to zoom · arrow keys when focused
AS403 timetable
Published departure and arrival times, each in its airport's local time, from the flights we sampled Oct 14–21.
| Route | Departs | Arrives | Scheduled | Days |
|---|---|---|---|---|
| SEA → SJCSeattle to San Jose | 8:48p | 10:59p | 2h11m | Mon, Tue, Wed, Thu, Sat, Sun |
Other nonstops from Seattle to San Jose
The departures either side of AS403. Times are Seattle time.
| Flight | Departs | Days |
|---|---|---|
| Alaska AS657 | 3:48p | Mon, Tue, Wed, Thu, Fri, Sun |
| Delta | 4:30p | Daily |
| Alaska AS1303 | 5:46p | Daily |
| This flight AS403 | 8:48p | Mon, Tue, Wed, Thu, Sat, Sun |
| Delta | 8:49p | Mon, Tue, Wed, Thu, Fri, Sun |
All 19 flights from SEA to SJC, by time →
Flying back from San Jose
Alaska flies San Jose to Seattle nonstop 37 times a week, from 6:17a to 8:44p: 8:02a AS1304 · 10:37a AS1311 · 1:31p AS659 · 4:48p AS521 · 8:44p AS745 · every nonstop SJC → SEA →
How AS403 ran in our sample
6 of 7 departures left within 15 minutes of schedule (Oct 14–21). Only flights that departed are counted: cancellations are not in our data.
Aircraft: Boeing 737 MAX 9 on 2 of 7; also Boeing 737-700 (2), Boeing 737-900 (2), Boeing 737-800 (1).
What time does AS403 leave Seattle?
AS403 is scheduled to depart Seattle (SEA) at 8:48p (Mon, Tue, Wed, Thu, Sat, Sun), Seattle time, and to land in San Jose (SJC) at about 10:59p local time, a scheduled 2h11m. Times are the published ones from the flights we sampled Oct 14–21; check Alaska for today's.
What plane is AS403?
Boeing 737 MAX 9 on 2 of the 7 AS403 flights from SEA we sampled Oct 14–21; the rest were a Boeing 737-700 or Boeing 737-900 or Boeing 737-800. Airlines swap aircraft, so the plane on a given day can differ.
Does AS403 fly every day?
In the week we sampled (Oct 14–21), AS403 flew Seattle to San Jose on Mon, Tue, Wed, Thu, Sat, Sun.
Is AS403 usually on time?
Of 7 AS403 departures from SEA we sampled Oct 14–21, 6 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 Seattle
Timetable from Alaska departures we observed; AS403 is a Alaska Airlines flight number, and Hop Nonstop is not affiliated with Alaska. Schedules change — confirm with the airline before you travel.