UA648 New YorkEWR · 10:40 San FranciscoSFO · 13:54
UA648 by United Airlines flies from New York (EWR) to San Francisco (SFO) for the Sun, Sep 6 departure.
arrived at SFO · 40 min late
Where the minutes go
last 4 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
Delay & cancellation outlook for this flight
Early read, sample still buildingConditions at EWR 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. 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 New York to San Francisco flights today
same route · United AirlinesIf UA648 is cancelled, these are the other United Airlines nonstop flights from New York to San Francisco on the same day, with scheduled departure times in EWR local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA648 actually runs
Pro Flight Search has tracked every published board update for UA648 across the EWR and SFO boards: schedule changes, gate pushes and actual clocks. Usually lands ~40 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 UA648 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as EWR and SFO published them.
Planning around UA648? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA648 New York to San Francisco on-time performance, measured from the EWR and SFO airport boards.
https://proflightsearch.com/flight/UA648
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