WN8666 ChicagoMDW · 13:20 LouisvilleSDF
WN8666 by Southwest Airlines flies from Chicago (MDW) to Louisville (SDF).
scheduled from MDW
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at MDW and SDF 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 Chicago to Louisville flights today
same route · Southwest AirlinesIf WN8666 is cancelled, these are the other Southwest Airlines nonstop flights from Chicago to Louisville on the same day, with scheduled departure times in MDW local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How WN8666 actually runs
Pro Flight Search has tracked every published board update for WN8666 across the MDW and SDF boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: departed -1 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how WN8666 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 MDW and SDF published them.
Planning around WN8666? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — WN8666 Chicago to Louisville on-time performance, measured from the MDW and SDF airport boards.
https://proflightsearch.com/flight/WN8666
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