WN4879 Kansas CityMCI · 14:40 SacramentoSMF · 16:15
WN4879 by Southwest Airlines flies from Kansas City (MCI) to Sacramento (SMF) for the Tue, Sep 8 departure.
en route from MCI to SMF
board checked 29m ago · checking again in 45s
Board estimate · the aircraft flying this number is still on an earlier leg of today’s trip.
Where the minutes go
last 5 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 +27 min · 0 cancelled · 5 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at MCI 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.
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.
How WN4879 actually runs
Pro Flight Search has tracked every published board update for WN4879 across the MCI and SMF boards: schedule changes, gate pushes and actual clocks. Usually lands ~28 min late. Based on 4 confirmed landings · 1/4 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how WN4879 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: N8961K, N8579Z, N8607M.
Board clocks recorded as MCI and SMF published them.
Planning around WN4879? 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 — WN4879 Kansas City to Sacramento on-time performance, measured from the MCI and SMF airport boards.
https://proflightsearch.com/flight/WN4879
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