WN156 ChicagoMDW · 20:15 DenverDEN · 22:20
WN156 by Southwest Airlines flies from Chicago (MDW) to Denver (DEN) for the Sun, Sep 13 departure.
arrival expected at DEN · on schedule
board checked 41m ago · checking again in 45s
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 MDW and DEN 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 Denver flights today
same route · Southwest AirlinesIf WN156 is cancelled, these are the other Southwest Airlines nonstop flights from Chicago to Denver 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 WN156 actually runs
Pro Flight Search has tracked every published board update for WN156 across the MDW and DEN boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 3 completed legs so far: left heavily delayed (~57 min) but landed heavily delayed (~46 min). Not enough to call it.
The verdict above is that record speaking, so it reflects how WN156 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: N447WN, N8878L, N8837Q, N8955Q.
Board clocks recorded as MDW and DEN published them.
Planning around WN156? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — WN156 Chicago to Denver on-time performance, measured from the MDW and DEN airport boards.
https://proflightsearch.com/flight/WN156
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