WN1938 OntarioONT · 11:15 SacramentoSMF · 12:45
WN1938 by Southwest Airlines flies from Ontario (ONT) to Sacramento (SMF).
scheduled from ONT
⚖ WN1938 typically leaves +8 and lands −18. The air wins minutes back.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 −18 min · 0 cancelled · 10 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at ONT and SMF are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records 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 →
Tomorrow at Ontario
ForecastWed 11 Nov, local date
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
Tomorrow at Sacramento
ForecastWed 11 Nov, local date
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Ontario to Sacramento flights today
same route · Southwest AirlinesIf WN1938 is cancelled, these are the other Southwest Airlines nonstop flights from Ontario to Sacramento on the same day, with scheduled departure times in ONT local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →
How WN1938 actually runs
Pro Flight Search has tracked every published board update for WN1938 across the ONT and SMF boards: schedule changes, gate pushes and actual clocks. Usually lands ~8 min early. Based on 10 confirmed landings · 8/10 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 WN1938 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: N7743B, N7745A, N8874Q, N436WN.
Board clocks recorded as ONT and SMF published them.
Planning around WN1938? 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: WN1938 Ontario to Sacramento on-time performance, measured from the ONT and SMF airport boards.
https://proflightsearch.com/flight/WN1938
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