UA5248 SacramentoSMF · 11:53 San FranciscoSFO · 13:05
UA5248 by United Airlines flies from Sacramento (SMF) to San Francisco (SFO) for the Mon, Sep 7 departure.
arrival expected at SFO · 49 min late
board checked 41m ago · checking again in 45s
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 −5 min · 0 cancelled · 5 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at SMF and SFO 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 Sacramento to San Francisco flights today
same route · United AirlinesIf UA5248 is cancelled, these are the other United Airlines nonstop flights from Sacramento to San Francisco on the same day, with scheduled departure times in SMF local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA5248 actually runs
Pro Flight Search has tracked every published board update for UA5248 across the SMF and SFO boards: schedule changes, gate pushes and actual clocks. Usually lands ~5 min early. Based on 4 confirmed landings · 4/4 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 UA5248 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: N85377, N87368, N605UX.
Board clocks recorded as SMF and SFO published them.
Planning around UA5248? 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 — UA5248 Sacramento to San Francisco on-time performance, measured from the SMF and SFO airport boards.
https://proflightsearch.com/flight/UA5248
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