UA584 PhiladelphiaPHL · 10:16 DenverDEN · 08:50
UA584 by United Airlines flies from Philadelphia (PHL) to Denver (DEN) for the Fri, Sep 18 departure.
Same number through PHL → IAH → DEN
arrived at DEN · 21 min early
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at PHL 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 Philadelphia to Denver flights today
same route · United AirlinesIf UA584 is cancelled, these are the other United Airlines nonstop flights from Philadelphia to Denver on the same day, with scheduled departure times in PHL local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA584 actually runs
Pro Flight Search has tracked every published board update for UA584 across the PHL and DEN boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: left about 5 min early but landed about 21 min early. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA584 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: N37419.
Board clocks recorded as PHL and DEN published them.
Planning around UA584? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA584 Philadelphia to Denver on-time performance, measured from the PHL and DEN airport boards.
https://proflightsearch.com/flight/UA584
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