WN3429 PhoenixPHX SeattleSEA
WN3429 by Southwest Airlines flies from Phoenix (PHX) to Seattle (SEA).
scheduled from PHX
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at PHX 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 Phoenix to Seattle flights today
same route · Southwest AirlinesIf WN3429 is cancelled, these are the other Southwest Airlines nonstop flights from Phoenix to Seattle on the same day, with scheduled departure times in PHX local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How WN3429 actually runs
Pro Flight Search has tracked every published board update for WN3429 across the PHX and SEA boards: schedule changes, gate pushes and actual clocks. Combined risk score: 33.0/100. Based on airport operations, weather, and cached board history at PHX and SEA.
The verdict above is that record speaking, so it reflects how WN3429 operates rather than what the timetable promises. Numbers refresh as new flights operate.
Planning around WN3429? 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 — WN3429 Phoenix to Seattle on-time performance, measured from the PHX and SEA airport boards.
https://proflightsearch.com/flight/WN3429
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