UA4043 WashingtonIAD · 22:44 AtlantaATL · 00:45
UA4043 by United Airlines flies from Washington (IAD) to Atlanta (ATL).
scheduled from IAD
The route today
live boardsWeather lens
Weather-conditioned outlook for this flight right now
Measured, 90-day sampleDriven mainly by IAD (Washington), currently flying IFR (instrument). 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 Washington to Atlanta flights today
same route · United AirlinesIf UA4043 is cancelled, these are the other United Airlines nonstop flights from Washington to Atlanta 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 UA4043 actually runs
Pro Flight Search has tracked every published board update for UA4043 across the IAD and ATL boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: landed +5 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA4043 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: N13720.
Board clocks recorded as IAD and ATL published them.
Planning around UA4043? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA4043 Washington to Atlanta on-time performance, measured from the IAD and ATL airport boards.
https://proflightsearch.com/flight/UA4043
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