WN389 DenverDEN · 09:15 SeattleSEA · 10:45
WN389 by Southwest Airlines flies from Denver (DEN) to Seattle (SEA) for the Sat, Sep 5 departure.
Same number through DEN → SJC → SEA
arrived at SEA · 1 min late
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
Early read, sample still buildingConditions at DEN 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. This route's tracked sample is still thin — treat these as an early read, not a precise forecast.
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 Denver to Seattle flights today
same route · Southwest AirlinesIf WN389 is cancelled, these are the other Southwest Airlines nonstop flights from Denver to Seattle on the same day, with scheduled departure times in DEN local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How WN389 actually runs
Pro Flight Search has tracked every published board update for WN389 across the DEN and SEA boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 5 confirmed landings · 5/5 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how WN389 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: N8873S, N8761L, N903WN, N8945Q.
Board clocks recorded as DEN and SEA published them.
Planning around WN389? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — WN389 Denver to Seattle on-time performance, measured from the DEN and SEA airport boards.
https://proflightsearch.com/flight/WN389
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