WN1554 SeattleSEA · 21:45 San JoseSJC · 23:55
WN1554 by Southwest Airlines flies from Seattle (SEA) to San Jose (SJC).
scheduled from SEA
Where the minutes go
last 3 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 SEA and SJC 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 on this route
ForecastSeattle to San Jose with Southwest Airlines · Mon 2 Nov, local date
- Chance a departure is cancelled
- 0.2%0.8× usual
- Chance a departure leaves 60+ min late
- 9.6%0.9× usual
Forecast weather: 36% chance of fog at Seattle
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · About 3 departures a day on this route with this airline. · 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 Seattle to San Jose flights today
same route · Southwest AirlinesIf WN1554 is cancelled, these are the other Southwest Airlines nonstop flights from Seattle to San Jose on the same day, with scheduled departure times in SEA 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 WN1554 actually runs
Pro Flight Search has tracked every published board update for WN1554 across the SEA and SJC boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 3 completed legs so far: landed -5 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how WN1554 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: N8804L, N8701Q, N8953Q.
Board clocks recorded as SEA and SJC published them.
Planning around WN1554? 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: WN1554 Seattle to San Jose on-time performance, measured from the SEA and SJC airport boards.
https://proflightsearch.com/flight/WN1554
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