WN4543 Las VegasLAS · 15:45 Santa AnaSNA · 16:55
WN4543 by Southwest Airlines flies from Las Vegas (LAS) to Santa Ana (SNA).
scheduled from LAS
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at LAS and SNA 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 Las Vegas
ForecastSat 7 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 Santa Ana
ForecastSat 7 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.
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Las Vegas to Santa Ana flights today
same route · Southwest AirlinesIf WN4543 is cancelled, these are the other Southwest Airlines nonstop flights from Las Vegas to Santa Ana on the same day, with scheduled departure times in LAS 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 WN4543 actually runs
Pro Flight Search has tracked every published board update for WN4543 across the LAS and SNA boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 1 completed leg so far: left heavily delayed (~88 min) but landed heavily delayed (~77 min). Not enough to call it.
The verdict above is that record speaking, so it reflects how WN4543 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: N8862Q.
Board clocks recorded as LAS and SNA published them.
Planning around WN4543? 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: WN4543 Las Vegas to Santa Ana on-time performance, measured from the LAS and SNA airport boards.
https://proflightsearch.com/flight/WN4543
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