WN8540 San SalvadorSAL HoustonHOU · 17:00
WN8540 by Southwest Airlines flies from San Salvador (SAL) to Houston (HOU) for the Sun, Sep 6 departure.
arrived at HOU · 45 min late
The route today
live boardsHow WN8540 actually runs
Pro Flight Search has tracked every published board update for WN8540 across the SAL and HOU boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: landed +45 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how WN8540 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as SAL and HOU published them.
Planning around WN8540? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — WN8540 San Salvador to Houston on-time performance, measured from the SAL and HOU airport boards.
https://proflightsearch.com/flight/WN8540
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