WN2978 ChicagoMDW · 06:25 SeattleSEA · 08:50
WN2978 by Southwest Airlines flies from Chicago (MDW) to Seattle (SEA) for the Tue, Oct 20 departure.
Same number through MDW → SAN → SEA
en route from MDW to SEA
board checked 7m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 06:25. No receiver coverage over open ocean.
Where the minutes go
last 6 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The last 30 days
arrival outcome per operation0 cancelled · 6 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at MDW and SEA 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 Seattle flights today
same route · Southwest AirlinesIf WN2978 is cancelled, these are the other Southwest Airlines nonstop flights from Chicago to Seattle 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 WN2978 actually runs
Pro Flight Search has tracked every published board update for WN2978 across the MDW and SEA boards: schedule changes, gate pushes and actual clocks. Usually lands ~21 min early. Based on 5 confirmed landings · 5/5 within 15 min of schedule. Pushes back late but makes up time in the air.
The verdict above is that record speaking, so it reflects how WN2978 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 SEA published them.
Planning around WN2978? 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 — WN2978 Chicago to Seattle on-time performance, measured from the MDW and SEA airport boards.
https://proflightsearch.com/flight/WN2978
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