WN4109 San JoseSJC · 08:40 AmarilloAMA · 10:10
WN4109 by Southwest Airlines flies from San Jose (SJC) to Amarillo (AMA) for the Wed, Sep 9 departure.
Same number through SJC → LAS → AMA
departs SJC · on schedule
board checked 35m ago · checking again in 45s
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at SJC and AMA 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 Amarillo flights today
same route · Southwest AirlinesIf WN4109 is cancelled, these are the other Southwest Airlines nonstop flights from San Jose to Amarillo 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 WN4109 actually runs
Pro Flight Search has tracked every published board update for WN4109 across the SJC and AMA boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: departed +5 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how WN4109 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: N962WN, N919WN.
Board clocks recorded as SJC and AMA published them.
Planning around WN4109? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — WN4109 San Jose to Amarillo on-time performance, measured from the SJC and AMA airport boards.
https://proflightsearch.com/flight/WN4109
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