WN439 ChicagoMDW · 11:35 WashingtonDCA · 14:20
WN439 by Southwest Airlines flies from Chicago (MDW) to Washington (DCA).
scheduled from MDW
Where the minutes go
last 4 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 DCA 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 MDW
ForecastThu 12 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 DCA
ForecastThu 12 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 Chicago to Washington flights today
same route · Southwest AirlinesIf WN439 is cancelled, these are the other Southwest Airlines nonstop flights from Chicago to Washington on the same day, with scheduled departure times in MDW 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 WN439 actually runs
Pro Flight Search has tracked every published board update for WN439 across the MDW and DCA boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 4 confirmed landings · 4/4 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how WN439 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: N8784Q, N8762Q, N9012J.
Board clocks recorded as MDW and DCA published them.
Planning around WN439? 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: WN439 Chicago to Washington on-time performance, measured from the MDW and DCA airport boards.
https://proflightsearch.com/flight/WN439
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