UA439 AustinAUS · 18:06 DenverDEN · 19:40
UA439 by United Airlines flies from Austin (AUS) to Denver (DEN) for the Wed, Oct 14 departure.
estimated arrival at DEN · local time · ~48 min from now
position updated 6m ago · checking again in 90s
Live position · flown path, last 1h 4m
Where the minutes go
last 3 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
Measured, 90-day sampleConditions at AUS 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 Austin to Denver flights today
same route · United AirlinesIf UA439 is cancelled, these are the other United Airlines nonstop flights from Austin to Denver on the same day, with scheduled departure times in AUS local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA439 actually runs
Pro Flight Search has tracked every published board update for UA439 across the AUS and DEN boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: left heavily delayed (~76 min) but landed noticeably late (~44 min). Not enough to call it.
The verdict above is that record speaking, so it reflects how UA439 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: N11206, N76529.
Board clocks recorded as AUS and DEN published them.
Planning around UA439? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA439 Austin to Denver on-time performance, measured from the AUS and DEN airport boards.
https://proflightsearch.com/flight/UA439
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