UA686 San FranciscoSFO · 07:05 HoustonIAH · 13:08
UA686 by United Airlines flies from San Francisco (SFO) to Houston (IAH) for the Mon, Sep 7 departure.
arrived at IAH · 12 min early
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Early read, sample still buildingConditions at SFO and IAH 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 San Francisco to Houston flights today
same route · United AirlinesIf UA686 is cancelled, these are the other United Airlines nonstop flights from San Francisco to Houston on the same day, with scheduled departure times in SFO local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA686 actually runs
Pro Flight Search has tracked every published board update for UA686 across the SFO and IAH boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: left right on schedule but landed about 11 min early. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA686 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 SFO and IAH published them.
Planning around UA686? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA686 San Francisco to Houston on-time performance, measured from the SFO and IAH airport boards.
https://proflightsearch.com/flight/UA686
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