WN4181 Las VegasLAS · 16:20 LouisvilleSDF · 23:00
WN4181 by Southwest Airlines flies from Las Vegas (LAS) to Louisville (SDF).
scheduled from LAS
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 LAS and SDF 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
ForecastWed 11 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 SDF
ForecastWed 11 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 Louisville flights today
same route · Southwest AirlinesIf WN4181 is cancelled, these are the other Southwest Airlines nonstop flights from Las Vegas to Louisville 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 WN4181 actually runs
Pro Flight Search has tracked every published board update for WN4181 across the LAS and SDF boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 3 completed legs so far: left a little late (~12 min) but landed right on schedule. Not enough to call it.
The verdict above is that record speaking, so it reflects how WN4181 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: N8660A, N8325D.
Board clocks recorded as LAS and SDF published them.
Planning around WN4181? 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: WN4181 Las Vegas to Louisville on-time performance, measured from the LAS and SDF airport boards.
https://proflightsearch.com/flight/WN4181
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