UA4063 WashingtonIAD · 13:05 JacksonvilleJAX · 15:19
UA4063 by United Airlines flies from Washington (IAD) to Jacksonville (JAX) for the Tue, Sep 8 departure.
departs IAD · on schedule
board checked 190m ago · checking again in 45s
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Early read, sample still buildingConditions at IAD and JAX 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.
Other Washington to Jacksonville flights today
same route · United AirlinesIf UA4063 is cancelled, these are the other United Airlines nonstop flights from Washington to Jacksonville on the same day, with scheduled departure times in IAD local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA4063 actually runs
Pro Flight Search has tracked every published board update for UA4063 across the IAD and JAX boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: landed +3 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA4063 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 IAD and JAX published them.
Planning around UA4063? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA4063 Washington to Jacksonville on-time performance, measured from the IAD and JAX airport boards.
https://proflightsearch.com/flight/UA4063
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