UA4843 WashingtonIAD · 12:49 RochesterROC · 14:20
UA4843 by United Airlines flies from Washington (IAD) to Rochester (ROC) for the Thu, Oct 29 departure.
arrival expected at ROC · on schedule
board checked 25m ago · checking again in 45s
Where the minutes go
last 3 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
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). These figures come from both airports' records 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 →
Tomorrow on this route
ForecastWashington to Rochester with United Airlines · Fri 30 Oct, local date
- Chance a departure is cancelled
- 0.7%0.3× usual
- Chance a departure leaves 60+ min late
- 8.5%0.9× usual
Forecast weather: 33% chance of fog at Washington
Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · About 4 departures a day on this route with this airline. · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Washington to Rochester flights today
same route · United AirlinesIf UA4843 is cancelled, these are the other United Airlines nonstop flights from Washington to Rochester on the same day, with scheduled departure times in IAD local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →
How UA4843 actually runs
Pro Flight Search has tracked every published board update for UA4843 across the IAD and ROC boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 2 completed legs so far: left noticeably late (~45 min) but landed right on schedule. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA4843 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: N11199.
Board clocks recorded as IAD and ROC published them.
Planning around UA4843? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search: UA4843 Washington to Rochester on-time performance, measured from the IAD and ROC airport boards.
https://proflightsearch.com/flight/UA4843
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