UA8165 ChicagoORD · 23:07 OntarioONT · 00:42
UA8165 by United Airlines flies from Chicago (ORD) to Ontario (ONT).
scheduled from ORD
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at ORD and ONT 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 Chicago to Ontario flights today
same route · United AirlinesIf UA8165 is cancelled, these are the other United Airlines nonstop flights from Chicago to Ontario on the same day, with scheduled departure times in ORD local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA8165 actually runs
Pro Flight Search has tracked every published board update for UA8165 across the ORD and ONT boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: landed +447 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA8165 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: N87507.
Board clocks recorded as ORD and ONT published them.
Planning around UA8165? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA8165 Chicago to Ontario on-time performance, measured from the ORD and ONT airport boards.
https://proflightsearch.com/flight/UA8165
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