WN3603 San JoseSJC · 14:55 Long BeachLGB · 16:15
WN3603 by Southwest Airlines flies from San Jose (SJC) to Long Beach (LGB).
scheduled from SJC
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at SJC and LGB are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, 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 →
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other San Jose to Long Beach flights today
same route · Southwest AirlinesIf WN3603 is cancelled, these are the other Southwest Airlines nonstop flights from San Jose to Long Beach on the same day, with scheduled departure times in SJC local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How WN3603 actually runs
Pro Flight Search has tracked every published board update for WN3603 across the SJC and LGB boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: landed +189 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how WN3603 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: N8997Q.
Board clocks recorded as SJC and LGB published them.
Planning around WN3603? 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 — WN3603 San Jose to Long Beach on-time performance, measured from the SJC and LGB airport boards.
https://proflightsearch.com/flight/WN3603
.