UA477 AnchorageANC · 15:30 San FranciscoSFO · 21:14
UA477 by United Airlines flies from Anchorage (ANC) to San Francisco (SFO) for the Tue, Sep 22 departure.
estimated arrival at SFO · local time · ~88 min from now
position updated 5m ago · checking again in 90s
Live position · flown path, last 2h 54m
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
Weather-conditioned outlook for this flight right now
Measured, 90-day sampleDriven mainly by SFO (San Francisco), currently flying MVFR (marginal visual). 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 UA477 actually runs
Pro Flight Search has tracked every published board update for UA477 across the ANC and SFO boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: landed +58 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA477 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: N37508, N17310, N17596, N77558.
Board clocks recorded as ANC and SFO published them.
Planning around UA477? 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 — UA477 Anchorage to San Francisco on-time performance, measured from the ANC and SFO airport boards.
https://proflightsearch.com/flight/UA477
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