UA45 ZurichZRH · 13:35 San FranciscoSFO · 16:35
UA45 by United Airlines flies from Zurich (ZRH) to San Francisco (SFO) for the Sun, Sep 20 departure.
estimated arrival at SFO · local time · ~8h 43m from now
board checked 10m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 13:40 · typical taxi-out at ZRH ≈ 9 min. No receiver coverage over open ocean.
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
Measured, 90-day sampleConditions at ZRH 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.
How UA45 actually runs
Pro Flight Search has tracked every published board update for UA45 across the ZRH and SFO boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 3 completed legs so far: left a little late (~19 min) but landed about 5 min early. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA45 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: N71108, N81107.
Board clocks recorded as ZRH and SFO published them.
Planning around UA45? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA45 Zurich to San Francisco on-time performance, measured from the ZRH and SFO airport boards.
https://proflightsearch.com/flight/UA45
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