UA845 ChicagoORD · 21:30 São PauloGRU · 09:35
UA845 by United Airlines flies from Chicago (ORD) to São Paulo (GRU) for the Sun, Sep 6 departure.
departs ORD · on schedule
board checked 33m ago · checking again in 45s
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
Early read, sample still buildingConditions at ORD and GRU 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.
How UA845 actually runs
Pro Flight Search has tracked every published board update for UA845 across the ORD and GRU boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: landed +88 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA845 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: N14016, N17002, N12010.
Board clocks recorded as ORD and GRU published them.
Planning around UA845? 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 — UA845 Chicago to São Paulo on-time performance, measured from the ORD and GRU airport boards.
https://proflightsearch.com/flight/UA845
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