UA309 ChicagoORD · 14:15 DenverDEN · 16:57
UA309 by United Airlines flies from Chicago (ORD) to Denver (DEN) for the Sat, Oct 24 departure.
Same number through ORD → DFW → DEN
en route from ORD to DEN
board checked 36m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 14:12 · typical taxi-out at ORD ≈ 8 min.
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at ORD and DEN 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 Denver flights today
same route · United AirlinesIf UA309 is cancelled, these are the other United Airlines nonstop flights from Chicago to Denver 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 UA309 actually runs
Pro Flight Search has tracked every published board update for UA309 across the ORD and DEN 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 17 min early. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA309 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: N804UA, N816UA.
Board clocks recorded as ORD and DEN published them.
Planning around UA309? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA309 Chicago to Denver on-time performance, measured from the ORD and DEN airport boards.
https://proflightsearch.com/flight/UA309
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