UA8174 VancouverYVR San FranciscoSFO · 23:20
UA8174 by United Airlines flies from Vancouver (YVR) to San Francisco (SFO).
scheduled from YVR
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at YVR 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 Vancouver to San Francisco flights today
same route · United AirlinesIf UA8174 is cancelled, these are the other United Airlines nonstop flights from Vancouver to San Francisco on the same day, with scheduled departure times in YVR local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA8174 actually runs
Pro Flight Search has tracked every published board update for UA8174 across the YVR and SFO boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: landed -12 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA8174 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 YVR and SFO published them.
Planning around UA8174? 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 — UA8174 Vancouver to San Francisco on-time performance, measured from the YVR and SFO airport boards.
https://proflightsearch.com/flight/UA8174
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