UA1575 HoustonIAH · 07:20 San FranciscoSFO · 08:55
UA1575 by United Airlines flies from Houston (IAH) to San Francisco (SFO) for the Fri, Sep 25 departure.
Same number through IAH → DEN → PHL → SFO
arrived at SFO · 2 min late
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at IAH 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 Houston to San Francisco flights today
same route · United AirlinesIf UA1575 is cancelled, these are the other United Airlines nonstop flights from Houston to San Francisco on the same day, with scheduled departure times in IAH local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA1575 actually runs
Pro Flight Search has tracked every published board update for UA1575 across the IAH and SFO boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 3 completed legs so far: left right on schedule but landed about 14 min early. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA1575 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: N39423, N14523.
Board clocks recorded as IAH and SFO published them.
Planning around UA1575? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA1575 Houston to San Francisco on-time performance, measured from the IAH and SFO airport boards.
https://proflightsearch.com/flight/UA1575
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