WN4303 DenverDEN · 08:30 San FranciscoSFO · 10:15
WN4303 by Southwest Airlines flies from Denver (DEN) to San Francisco (SFO) for the Sun, Oct 18 departure.
en route from DEN to SFO
board checked 10m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 08:52 · typical taxi-out at DEN ≈ 7.3 min.
Where the minutes go
last 3 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The route today
live boardsWeather lens
Weather-conditioned outlook for this flight right now
Measured, 90-day sampleDriven mainly by SFO (San Francisco), currently flying MVFR (marginal visual). 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 Denver to San Francisco flights today
same route · Southwest AirlinesIf WN4303 is cancelled, these are the other Southwest Airlines nonstop flights from Denver to San Francisco 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 WN4303 actually runs
Pro Flight Search has tracked every published board update for WN4303 across the DEN and SFO boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 3 completed legs so far: left right on schedule but landed about 10 min early. Not enough to call it.
The verdict above is that record speaking, so it reflects how WN4303 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: N8913S, N8961K, N8669B.
Board clocks recorded as DEN and SFO published them.
Planning around WN4303? 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 — WN4303 Denver to San Francisco on-time performance, measured from the DEN and SFO airport boards.
https://proflightsearch.com/flight/WN4303
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