WN256 HoustonHOU ChicagoMDW
WN256 by Southwest Airlines flies from Houston (HOU) to Chicago (MDW).
scheduled from HOU
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at HOU and MDW 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 Houston to Chicago flights today
same route · Southwest AirlinesIf WN256 is cancelled, these are the other Southwest Airlines nonstop flights from Houston to Chicago on the same day, with scheduled departure times in HOU local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How WN256 actually runs
Pro Flight Search has tracked every published board update for WN256 across the HOU and MDW boards: schedule changes, gate pushes and actual clocks. Combined risk score: 11.7/100. Based on airport operations, weather, and cached board history at HOU and MDW.
The verdict above is that record speaking, so it reflects how WN256 operates rather than what the timetable promises. Numbers refresh as new flights operate.
Planning around WN256? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — WN256 Houston to Chicago on-time performance, measured from the HOU and MDW airport boards.
https://proflightsearch.com/flight/WN256
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