UA4843United Airlines · IAD → ROC
live · 1h ago
Route confirmed United Airlines

UA4843 WashingtonIAD · 12:49 RochesterROC · 14:20

UA4843 by United Airlines flies from Washington (IAD) to Rochester (ROC) for the Wed, Oct 28 departure.

Right nowExpected · today · as of 10:25
12:49

departs IAD · on schedule

Typical gate push+30 minmedian posted departure
Typical arrival−10 minmedian over 2 operations
Wins back in air~40 minmedian gate push vs arrival · how planes make up time →

The route today

live boards
IADWashingtonOn-time likelyIAD delay board →
ROCRochesterOn-time likelyROC delay board →
IAD→ROCevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
36%Chance of 15+ min delay
4.7%Chance of cancellation
+4 minAvg hub delay right now

Conditions at IAD and ROC 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 →

Tomorrow on this route

Forecast

Washington to Rochester with United Airlines · Thu 29 Oct, local date

Outlook: about usual
Chance a departure is cancelled
0.8%0.4× usual
Chance a departure leaves 60+ min late
9.8%1.0× usual

Forecast weather: 64% 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 departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Washington to Rochester flights today

same route · United Airlines
UA4270departs 08:15
UA4443departs 08:20
UA4877departs 08:26
UA4563departs 12:45
UA4871departs 17:30
UA4455departs 20:47

If 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 posting a delay still operate — rebooking usually only beats a very large posted delay. 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 — pattern not clear yet. Only 2 completed legs so far: left noticeably late (~24 min) but landed about 10 min early. 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.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
10-27IAD 12:49 13:19 (+30)ROC 14:20 13:59 (−21)
10-26IAD 12:49 13:13 (+24)ROC 14:20 14:10 (−10)

Aircraft

Recent tails: N11199, N14162.

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

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — UA4843 Washington to Rochester on-time performance, measured from the IAD and ROC airport boards.

Canonical URL
https://proflightsearch.com/flight/UA4843
How we measure this →