WN3542 SeattleSEA · 05:30 SacramentoSMF · 07:15
WN3542 by Southwest Airlines flies from Seattle (SEA) to Sacramento (SMF).
scheduled from SEA
Where the minutes go
last 7 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 operationmedian arrival −14 min · 0 cancelled · 10 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Early read, sample still buildingConditions at SEA and SMF 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 Seattle to Sacramento flights today
same route · Southwest AirlinesIf WN3542 is cancelled, these are the other Southwest Airlines nonstop flights from Seattle to Sacramento on the same day, with scheduled departure times in SEA local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How WN3542 actually runs
Pro Flight Search has tracked every published board update for WN3542 across the SEA and SMF boards: schedule changes, gate pushes and actual clocks. Usually lands ~12 min early. Based on 10 confirmed landings · 9/10 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 WN3542 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: N917WN, N211WN, N282WN, N478WN.
Board clocks recorded as SEA and SMF published them.
Planning around WN3542? 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 — WN3542 Seattle to Sacramento on-time performance, measured from the SEA and SMF airport boards.
https://proflightsearch.com/flight/WN3542
.