UA4546 WashingtonIAD · 17:36 BuffaloBUF · 18:58
UA4546 by United Airlines flies from Washington (IAD) to Buffalo (BUF).
scheduled from IAD
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at IAD and BUF 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 Washington to Buffalo flights today
same route · United AirlinesIf UA4546 is cancelled, these are the other United Airlines nonstop flights from Washington to Buffalo 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 UA4546 actually runs
Pro Flight Search has tracked every published board update for UA4546 across the IAD and BUF boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: left heavily delayed (~79 min) but landed noticeably late (~33 min). Not enough to call it.
The verdict above is that record speaking, so it reflects how UA4546 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: N553GJ, N539GJ.
Board clocks recorded as IAD and BUF published them.
Planning around UA4546? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA4546 Washington to Buffalo on-time performance, measured from the IAD and BUF airport boards.
https://proflightsearch.com/flight/UA4546
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