UA4874 RochesterROC · 19:55 WashingtonIAD · 21:17
UA4874 by United Airlines flies from Rochester (ROC) to Washington (IAD) for the Fri, Oct 16 departure.
arrived at IAD · 16 min early
The route today
live boardsWeather lens
Weather-conditioned outlook for this flight right now
Measured, 90-day sampleDriven mainly by IAD (Washington), currently flying MVFR (marginal visual). 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 Rochester to Washington flights today
same route · United AirlinesIf UA4874 is cancelled, these are the other United Airlines nonstop flights from Rochester to Washington on the same day, with scheduled departure times in ROC local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA4874 actually runs
Pro Flight Search has tracked every published board update for UA4874 across the ROC and IAD boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: left a little late (~13 min) but landed about 13 min early. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA4874 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: N17196.
Board clocks recorded as ROC and IAD published them.
Planning around UA4874? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA4874 Rochester to Washington on-time performance, measured from the ROC and IAD airport boards.
https://proflightsearch.com/flight/UA4874
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