AS1304 San JoseSJC · 13:26 SeattleSEA · 15:41
AS1304 by Alaska Airlines flies from San Jose (SJC) to Seattle (SEA) for the Wed, Nov 4 departure.
departs SJC · 2 min early
Where the minutes go
last 4 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at SJC and SEA are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records under conditions like today's, over the last 90 days.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
Tomorrow at San Jose
ForecastThu 5 Nov, local date
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
Tomorrow at Seattle
ForecastThu 5 Nov, local date
- 72% chance of rain
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other San Jose to Seattle flights today
same route · Alaska AirlinesIf AS1304 is cancelled, these are the other Alaska Airlines nonstop flights from San Jose to Seattle on the same day, with scheduled departure times in SJC local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →
How AS1304 actually runs
Pro Flight Search has tracked every published board update for AS1304 across the SJC and SEA boards: schedule changes, gate pushes and actual clocks. Usually departs ~6 min early. Based on 4 confirmed departures · 3/4 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how AS1304 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: N962AK, N493AS, N285AK.
Board clocks recorded as SJC and SEA published them.
Planning around AS1304? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search: AS1304 San Jose to Seattle on-time performance, measured from the SJC and SEA airport boards.
https://proflightsearch.com/flight/AS1304
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